5.7 Hemi V.s 5.3 Vortec

ok now we can get back to it! someone get me a vid of a chev eating a hemi even if it's a digi-cam from the passager's seat!

Say it don't spray it people. Simple as this 5.3 Chevy vs. 5.7 Hemi. Drivers Race. Chevy is better....

Say it don't spray it people. Simple as this 5.3 Chevy vs. 5.7 Hemi. Drivers Race. Chevy is better....

Sorry dude, it's never that simple. :iceslolan

ok now we can get back to it! someone get me a vid of a chev eating a hemi even if it's a digi-cam from the passager's seat!
Your wish is my command. I'll go hunt one down this weekend for ya! :grinyes:

You have confirmed my first point. "You select the vehicle that has the attributes you want. You selected the Chevy because it had the attributes you were looking for. In this case, those attributes were the aftermarket support for that particular vehicle.

Regarding the street racing thing, I have to admit, I thought you were talking about street racing. I've read so many lame-brain posts regarding street racing kills, I simply thought you were contributing. Sorry if I pegged you wrong on that one.

Finally, the vehicle insurance isn't as bad as you might think. The 5 trucks and 2 vans are insured as work vehicles, and carry 5 million dollar policies on them. Actually it only breaks down to about $150.00 a month per truck (about $13k a year) . The cars are insured seperately.
...and the Dart is covered by my home owners insurance when it's in the garage, my truck insurance when it's in tow, and Racers Insurance when it's on the track.

I'm glad I just have the one to pay for. It keeps me enough money in the pocket to keep on blowing it on the truck. :naughty:

you da man slowprocess! we know you can eat them for breakfast lunch and dinner! seen you vid VERY NICE! you have to get a pic of the driver's face....but anyone with a 5.3 willing to try? oh and jeverret way to eat a stang! keep up the good work! hungry trucks have to eat. ive done the corvette tranny thing now thinking S/C? for engine mod not sure where else to get the juice without major overhaul beside's cam? and ya i did the air box mod with a kand n filter, chopped the egr bla bla bla..

I haven't come across any dodges that wanted a race, and the way I see it, thats the only way Ill ever really find out if I can take him.
And by the way, its always funny when you take down a Mustang...

I haven't come across any dodges that wanted a race, and the way I see it, thats the only way Ill ever really find out if I can take him.
And by the way, its always funny when you take down a Mustang...

:lol: :lol: :lol: :lol: :lol:

All I can say is take it to the track, man. Those are the only "kills" that count anyway.

I finally took a HEMI Wednesday night! I was at Hooters, before a concert, and it started raining (like that's important). Well, the old boy that I ran in stock form started his shit again, so when we were leaving, we both happened to line up at a redlight. The road was slick and on takeoff I spun thorugh the intersection (damn thing wouldnt quit spinnin!!) I though he had me. Well, how wrong was I. Once the tires hooked up, he was through dealing. His mods are a FIPK, duals and TBS..the same thing I have EXCEPT the Nelson tune. Trust me, Hemi's arent all that.

:disappoin
Sorry, not doubting your word, but, when it comes to people talking about their rides, I've learned two things in life:
1. Street racing proves NOTHING. Too many variables.
2. Believe nothing you hear (read) and only half of what you see ( pics and vids can be modified, too).

BTW, that really is a good looking truck you got there, though. :bigthumb:

:disappoin
Sorry, not doubting your word, but, when it comes to people talking about their rides, I've learned two things in life:
1. Street racing proves NOTHING. Too many variables.
2. Believe nothing you hear (read) and only half of what you see ( pics and vids can be modified, too).

BTW, that really is a good looking truck you got there, though. :bigthumb:

My 12.67 vid was "modified". :grinyes: I really ran a 10, but I didn't want to make people too jealous. :biggrin: Just bustin your chops, man. I wish I did know how to "modify" video clips. I do good just to get them online. If I could, I would have the only 9 sec nbs truck running around anywhere. :biggrin:

What about a chevy 5.7 vortec vs a chevy 5.3 vortec? What has more power? what has more Torque?

My 12.67 vid was "modified". :grinyes: I really ran a 10, but I didn't want to make people too jealous. :biggrin: Just bustin your chops, man. I wish I did know how to "modify" video clips. I do good just to get them online. If I could, I would have the only 9 sec nbs truck running around anywhere. :biggrin:

I know what you mean, I'm not good at it either. My son works for one of the local TV network affiliates, and you should see what thay can do!!!! The line between reality, and wishful thinking is easily crossed, and well hidden.

One of the things he did was to photoshop one of my trucks. When he showed me the finished product, my reply was "...Hmmm, nice truck. Who's is it? Turns out it was one of mine, but I didn't recognize it at all.

He can modify videos just as easily, and just as well. It's amazing, and a little frightening. It seems to me that any of todays news organizations could, if they wanted to, manufacture a news story, and back it up with photos or a video, and we would be hard pressed to refute it.

I know there are some really great looking trucks around, and some trully quick ones, too. I've simply learned that there are also a lot of lame posters who are good with a computer, and can actually give you a pic or a vid to back up their lie. Because of that, I take everything I see on the net with a grain of salt. That's why I don't buy any of the street kill stories. At least at a drag strip, you got a time slip to be to back you up. Although I supposed those can be faked, too. Most dragstrips keep a computerized record of every run, and have no reason to falsely modify them. I suppose if you were truly interested, you could track down the truth.

In any case, I enjoy reading about the street "kills", but I don't believe any of the posts, at all. I think they make for great imaginative fiction, and wishful thinking, but if we were to believe every killl story, I would have to believe that there are nitro burning pick-ups roving the streets of every city and town in two countries. Every Chevy driver would have the fastest truck on every Chevy board, and likewise for Ford owners on Ford boards, and Dodge's, too. I'm not saying everyone is lying, but I believe MOST of these stories are BS, and I don't think I'm good enough to sort them out. It's easier to just take them all as what they are; War Stories that become more and more embellished each time they're told.

Some of the story tellers are actually pretty good, too! We've all seen the the stories in which the tell sets up the seen and te characters, and then gives us a shift by shift play of the action, and then adds the finally. It makes for a good read, but probably has little to do with the facts.

What about a chevy 5.7 vortec vs a chevy 5.3 vortec? What has more power? what has more Torque?

The 350 vortech or the LS1 346? I'm pretty sure both are 5.7L, one was a pre-LS1 and the 346 being the newer one. If you mean the old vortech, the 5.3L stock has more guts, period. More horsepower/torque overall better motor. The 5.7L LS1 is better than the 5.3L. Again, more horsepower/torque and lighter being that it is an aluminum block.

The old 350 vortech was the man of the day, but if you get out of a stock 5.3L into a stock 350 vortech, you can really tell how far technology has come.

The 350 vortech or the LS1 346? I'm pretty sure both are 5.7L, one was a pre-LS1 and the 346 being the newer one. If you mean the old vortech, the 5.3L stock has more guts, period. More horsepower/torque overall better motor. The 5.7L LS1 is better than the 5.3L. Again, more horsepower/torque and lighter being that it is an aluminum block.

The old 350 vortech was the man of the day, but if you get out of a stock 5.3L into a stock 350 vortech, you can really tell how far technology has come.

This is where I get confused. Example my dad had a 1967 conv. stingray corrvette with a 327 350 hp engine I have a 1968 SS396 elcamino with same 350HP but my big block was way more torque than his, no comparison. His was faster, but that's another issue.So these HP ratings I really don't understand. His A 5.3 more powerful than a larger cubic inch 5.7. How does make up for the lack of displacement ? Heads?, cam?.....And I'm referring stock truck engines in 99 they switched to a 326 or 5.3.

The 350 vortech or the LS1 346? I'm pretty sure both are 5.7L, one was a pre-LS1 and the 346 being the newer one. If you mean the old vortech, the 5.3L stock has more guts, period. More horsepower/torque overall better motor. The 5.7L LS1 is better than the 5.3L. Again, more horsepower/torque and lighter being that it is an aluminum block.

The old 350 vortech was the man of the day, but if you get out of a stock 5.3L into a stock 350 vortech, you can really tell how far technology has come.

That's not exactly true. The Vortec 5.7 (2nd gen block, like the LT-1) has more torque at a lower rpm then the new Vortec 5.3 (based on the LS1 as you know).

The 5.7L Vortecs had 250/255 hp (96s had 250, 97-99 had 255) and 335 lbs-tq vs. 270/285/295/310 hp and 325/330 lbs-tq (depends on the model year for how much power the 5.3 has) and all at a lower rpm (dont know the exact rpm, but the Vortec 350's peak torque comes before 4000 rpms).

I've driven both Vortec 5.7s and 5.3s, and honestly, there is not that big of a difference. The 5.3 revs quicker and faster, but the 5.7 has a much stronger feeling bottom end, and MOST people will say for towing, they prefer the Vortec 350. In a flat out drag race, yeah, the new 5.3 would beat the Vortec 5.7, but not untill the upper rpm range.

I like em both, lol. The new 5.3s are very strong indeed, and dont seem to ever quit pulling, but I dont think they are THAT much better then the Vortec 5.7.

About the Hemi and Dodge, well all GM has to do to regain bragging rights is to use the LQ9 Vortec 6.0 in the half-ton trucks (345 hp, 380 lbs-tq) and that would stop all talk about "does that thing have a Hemi".

Chevytruck92: You commented about th elength of time my truck was in the shop, "(2.5 weeks seems like along time to me for a mechanical problem at a professional garage)."
My truck was at the local Chevy dealer for 12 working days to replace a blown 5.3L V8. The first replacement engine they installed only rane for 5 minutes before a crack in the block was noticed by one of the techs. The second replacement engine was ordered and installed, and the dealer kept the truck for another day just to check the new installation out more closely.
That doesn't seem like a "long time" to me, at all.



Sounds fair enough. I guess they had to order both engines which probably took 3-5 days to get there. Oh well.

Good luck with the diesel purchase. I think that's what I want to get when I get out of a school and get a "real" job, lol. I am one of those diehard GM people, so I'm def. going to go with a GM product (I really like the way the 3/4-ton GMCs look).

All that is still a little while off though, so I'll be sticking with my '92 Silverado, with 127,xxx mostly trouble free miles (I've put about half of those on it-my Dad and Grand Dad put the rest).

That's not exactly true. The Vortec 5.7 (2nd gen block, like the LT-1) has more torque at a lower rpm then the new Vortec 5.3 (based on the LS1 as you know).

The 5.7L Vortecs had 250/255 hp (96s had 250, 97-99 had 255) and 335 lbs-tq vs. 270/285/295/310 hp and 325/330 lbs-tq (depends on the model year for how much power the 5.3 has) and all at a lower rpm (dont know the exact rpm, but the Vortec 350's peak torque comes before 4000 rpms).

I've driven both Vortec 5.7s and 5.3s, and honestly, there is not that big of a difference. The 5.3 revs quicker and faster, but the 5.7 has a much stronger feeling bottom end, and MOST people will say for towing, they prefer the Vortec 350. In a flat out drag race, yeah, the new 5.3 would beat the Vortec 5.7, but not untill the upper rpm range.

I like em both, lol. The new 5.3s are very strong indeed, and dont seem to ever quit pulling, but I dont think they are THAT much better then the Vortec 5.7.

About the Hemi and Dodge, well all GM has to do to regain bragging rights is to use the LQ9 Vortec 6.0 in the half-ton trucks (345 hp, 380 lbs-tq) and that would stop all talk about "does that thing have a Hemi".

Yeah, I actually forgot about the torque being higher on the older vortech. They will pull a 5.3L out of the hole(due to the torque), but it usually doesn't take long for the 5.3L to make up the difference. I have noticed, riding in several extended cab 5.3L, that they really don't pull worth a crap down low with no mods. They really wake up after the 1-2 shift though.

They have the LQ9 in a half-ton truck now, the vho package. It's an extended cab, but doesn't have the awd crap on it. It's a nice truck putting down very respectible numbers stock.

Sounds fair enough. I guess they had to order both engines which probably took 3-5 days to get there. Oh well.

Good luck with the diesel purchase. I think that's what I want to get when I get out of a school and get a "real" job, lol. I am one of those diehard GM people, so I'm def. going to go with a GM product (I really like the way the 3/4-ton GMCs look).

All that is still a little while off though, so I'll be sticking with my '92 Silverado, with 127,xxx mostly trouble free miles (I've put about half of those on it-my Dad and Grand Dad put the rest).

I had the truck towed in a on a Tuesday, and when I stopped by the following Friday, the truck was in the shop, with the hood removed, and a large hole where the engine was. There was also a plastic box sitting next to it that had just arrived that afternoon. They didn't even start the installation until the following Monday. It was a remanufactured engine, and only ran for a few minutes before one of the techs spotted steam coming from the side of the block. That's when I told them to order up a NEW engine from GM.
That was Wednesday, and the began the installation of the new engine the following Monday (again). I had them deliver the truck to my house on Thursday (some 16 calander days later). When I got home Thursday afternoon, the truck was in my driveway. I used it that Friday as a test run, and stopped by the dealership late Friday afternoon to sign the paperwork and the warranty on the new engine.

Regarding the new trucks, like I said, I'll be buying two of them. Presently I'm leaning toward the Ford F350 or F450 simply because they have a higher towing and carrying capacity than the GM or the Dodge. As far as engines are concerned, I really prefer the Commins, but the Fords are just better equipped to handle the workload. The Powerstroke is a damn good diesel, too. I've got some experience with both, and have put over 1/2 million miles on them. The one experience I have with the Izusu diesel wasn't good. By 200,000 miles, I had to replace a head, twice, and the injector pump once, and a cracked exhaust manifold once. With the Cummins and the P.S diesels, I didn't experience any of these issues, and put more than twice the miles on each of them.

I would love to be able to by a new GM truck with the GMC 671 diesel in it, but you can't do that anymore.

Speed isn't an issue with me. The ability to do a lot of work at low cost with minimal down time is a factor. The PS and the Cummins both have long and successful histories in this area, the Chevy/Izusu diesel doesn't have the years of data to back it up. I'm not saying it isn't a good diesel, I simply saying that it hasn't been truly proven yet.

I will be dropping close to $80,000 for two trucks I don't want to be part of GM's 5 year road test on these trucks. I'll leave that to the larger companies who can afford to do it, and to the loyalists who don't care about anything but a bowtie (sorry, no disrespect intended). I've got work to do, a budget to maintain, and customers who don't care if one of my trucks is out of service, they just want my crew on the job site.

All that said, I haven't made a decision, yet. The GM's aren't out of the question, but right now they are running third out of a choice among three. I do like the Allison Transmissions though. I've still got some time to make up my mind, and I'll be researching the value of each truck more closely during the next few month.

My buying criteria is a little different that yours. It doesn't include power windows and door locks, or leather seats, or carpetid floors, or beinf the fastest on my block, etc. My criteria differs in that I'm looking at payload, towing, longevity, and dependibility. Vinyl bench seats, and manual windows and door locks. I do equip all my trucks with A/C, and CD players, hands free phone hook ups, and tinted glass.

Unfortunately, you can't take people's word on these things, you have to go by the historic facts. I'm more interested in the actual recorded data on these vehicles than someones opinion of the brand. Opinions are most often skewed toward an individuals choice rather than facts.

Yeah, I actually forgot about the torque being higher on the older vortech. They will pull a 5.3L out of the hole(due to the torque), but it usually doesn't take long for the 5.3L to make up the difference. I have noticed, riding in several extended cab 5.3L, that they really don't pull worth a crap down low with no mods. They really wake up after the 1-2 shift though.

They have the LQ9 in a half-ton truck now, the vho package. It's an extended cab, but doesn't have the awd crap on it. It's a nice truck putting down very respectible numbers stock.

Re: the 5.7 vs. the 5.3, if given the choice, I'd take the 5.7L all day long. It's a proven work horse, and I've never experienced some of the issues the new gen Vortec engines have.
The 350 was just a good engine, plain and simple.

Re: the 5.7 vs. the 5.3, if given the choice, I'd take the 5.7L all day long. It's a proven work horse, and I've never experienced some of the issues the new gen Vortec engines have.
The 350 was just a good engine, plain and simple.

You're right about that. It was def. a proven work horse, and a good one at that. Now I've never had one, but my family has had both, and honestly, my Papaw's old 97 Silveardo ex-cab, 4WD with the 5.7L Vortec got better gas mileage then his new 04 Silveardo, ex-cab Z-71 with the 5.3L Vortec.

Back to the diesel issue. I would really look into the new PS diesels before I bought one simply becuase they had a ton of problems at their initial launch. Now the old 7.3L PS diesels were very good engines, the trucks wasn't too great though. The HD Fords with the diesel have a terrible problem with front ball joints from 99-04. I dont know about these updated 05s though.

Its true the Duramax's had their share of problems as well. I do know the first ones blowed head gaskets at or around 100k.

I dont know anything about the Cummins except that they are just way too loud for my likings, lol.

Yeah, I actually forgot about the torque being higher on the older vortech. They will pull a 5.3L out of the hole(due to the torque), but it usually doesn't take long for the 5.3L to make up the difference. I have noticed, riding in several extended cab 5.3L, that they really don't pull worth a crap down low with no mods. They really wake up after the 1-2 shift though.

They have the LQ9 in a half-ton truck now, the vho package. It's an extended cab, but doesn't have the awd crap on it. It's a nice truck putting down very respectible numbers stock.

That's all I've ever drove with the 5.3L (extended cab Z-71 trucks). They have tons of power but they are at their strongest at around 3000 rpms. I will say that the 03-up 5.3s seem to have more power then the 01s, and I think its becuase of hte throttle by wire system that was used starting in 03. They have a little bit better throttle response.

I heard about the VHO package, and it sounds cool enough, but I woudl still rather have the SS simply becuase it is AWD. But what I was thinking when I said GM needs to offer the LQ9 in regular half-ton trucks was putting it in the Z-71s or just any half-ton truck. That would give GM the most hp and torque in the class.

I've never driven a truck/suv with the LQ9, but i have driven a 02 2500HD with the 6.0 (I think it was like what you have now, the LQ4) with 300 hp and 360 lbs-tq. Now that truck had tons of power at any rpm, lol, and sounded great. It would pull any hill at about 55-60 mph without ever shifting out of OD, and all 800-1000 lbs in the bed did to it was make it ride better, lol.

Bah! I still won. :icon16: lol

That's all I've ever drove with the 5.3L (extended cab Z-71 trucks). They have tons of power but they are at their strongest at around 3000 rpms. I will say that the 03-up 5.3s seem to have more power then the 01s, and I think its becuase of hte throttle by wire system that was used starting in 03. They have a little bit better throttle response.

I heard about the VHO package, and it sounds cool enough, but I woudl still rather have the SS simply becuase it is AWD. But what I was thinking when I said GM needs to offer the LQ9 in regular half-ton trucks was putting it in the Z-71s or just any half-ton truck. That would give GM the most hp and torque in the class.

I've never driven a truck/suv with the LQ9, but i have driven a 02 2500HD with the 6.0 (I think it was like what you have now, the LQ4) with 300 hp and 360 lbs-tq. Now that truck had tons of power at any rpm, lol, and sounded great. It would pull any hill at about 55-60 mph without ever shifting out of OD, and all 800-1000 lbs in the bed did to it was make it ride better, lol.

I feel that the main reason these trucks seem to get faster every year is mainly in the tuning. The 99 models were extremely undertuned, as was shown on Atap. They had alot of false knock retard and other problems. I think GM has really began to get aggresive with the tuning. They still have a long way to go, though. My experiences with the old 5.7 was bad oil burning ones. The one I had really started burning the oil after the 90,000 mark. My 4.8L never burned oil. I also felt the 4.8L and the 5.7L had about the same amount of horsepower. They pulled about the same in the mid/high end it seems. They also ran similar times with similar mods.
Yeah, the LQ4 6.0L is pretty tough, especially when you stuff it in a 4300lb truck and get some work done to it. :biggrin: I would take the vho over the ss for the same reason you would take the ss over the vho, the awd. I really don't like it, because it kills the mid-high end on those trucks. My first encounter with one was at the track. He actually beat me in the 60ft, but it fell way out of site right after that. It ended up running a 14.9 to my 12.8. I also found out that ecsb I ran my 12.6 on had an LQ9 in it. He went 13 flat. That was an extremely fast extended cab.

I feel that the main reason these trucks seem to get faster every year is mainly in the tuning. The 99 models were extremely undertuned, as was shown on Atap. They had alot of false knock retard and other problems. I think GM has really began to get aggresive with the tuning. They still have a long way to go, though. My experiences with the old 5.7 was bad oil burning ones. The one I had really started burning the oil after the 90,000 mark. My 4.8L never burned oil. I also felt the 4.8L and the 5.7L had about the same amount of horsepower. They pulled about the same in the mid/high end it seems. They also ran similar times with similar mods.
Yeah, the LQ4 6.0L is pretty tough, especially when you stuff it in a 4300lb truck and get some work done to it. :biggrin: I would take the vho over the ss for the same reason you would take the ss over the vho, the awd. I really don't like it, because it kills the mid-high end on those trucks. My first encounter with one was at the track. He actually beat me in the 60ft, but it fell way out of site right after that. It ended up running a 14.9 to my 12.8. I also found out that ecsb I ran my 12.6 on had an LQ9 in it. He went 13 flat. That was an extremely fast extended cab.

I've never drove a 4.8, but I have rode in one. It was just the base model extended cab 4WD. No carpet, no CD player, no chrome. Just plain jane, but man it would FLY! I honestly think it had more power then the 5.3s. Now I never drove it, but just from riding in it, lol, it felt stronger then the 5.3s. I assume it would be somewhat lighter, but not tha tmuch lighter. Either way, it would just scream for a 4WD truck with a small V-8.

People in my family had the 5.7L Vortecs, and they never had any oil consumption problems, but they never kept the trucks more then 50k. Now my 92 with the TBI 5.7L doesn't use a drop and it has 127,xxx. It feels as strong in the bottom end as the new 5.3s, but not in the upper rpm range.

Two of my trucks have 4.8's in them. One has 110,xxx miles and the other about 50,000 miles. Both seem to be very good engines. The truck with the 110K miles has never had a repair that wasn't a recall. The engine doesn't use any oil between changes, and has plenty of pep, but it all above 3k rpm. It's an LS, so it has more creature comforts than some of the other trucks, and I've used it as a daily driver for a while, too. It's a good truck. Wish I could say the same for a couple of the 5.3's I've got or had.

If I were considering another light duty truck, it wouldn't bother me if it had a 4.8. Good engine.

Two of my trucks have 4.8's in them. One has 110,xxx miles and the other about 50,000 miles. Both seem to be very good engines. The truck with the 110K miles has never had a repair that wasn't a recall. The engine doesn't use any oil between changes, and has plenty of pep, but it all above 3k rpm. It's an LS, so it has more creature comforts than some of the other trucks, and I've used it as a daily driver for a while, too. It's a good truck. Wish I could say the same for a couple of the 5.3's I've got or had.

If I were considering another light duty truck, it wouldn't bother me if it had a 4.8. Good engine.

That's cool. I'm sure the 4.8L would be good enough, but I"m also pretty sure the one I mentioned was a ringer, lol. It was just super strong, lol. It felt strong at no matter what rpm, of course it was the base model and it only had 245 series tires.

If I were getting a new 1/2-ton truck though, I'd go for the 5.3 simply for the extra 35 lbs-tq. I'm not sure how well the 4.8 would handle a trailer weighing around 3500 lbs. I know that's well within their limits, but in the real world, 3500 lbs will effect how a truck performs, especially in a hilly region. Actually, I think if I could get a new 1/2-ton truck, I'd go with the SS and get the LQ9 6.0 with its 345 hp and 380 lbs-tq. A truck like that would look good pulling a racecar!

I want a 3/4-ton truck though, and probably with a diesel (even though I'm not much of a fan on diesels and their high initial and maintanence cost). The 6.0L that comes in 2500HD Silveardos is very strong, but they are gas hogs from way back, and I'm positive the 8.1 would be even worse!

One of my trucks is an 8.1, the truck is a 2001 3500HD. If I'm real nice to it, i can get 9 mpg. But to be fair, it's always loaded, and it pulls an 5500 lb twin dually trailer like stink. Except for the lousy gas milage, you don't even know the trailer is back there. It's one of the trucks I'm getting rid of, and replacing with a diesel.

You want to pull a race car? Do it with a Crew cab Diesel Dually :grinyes: That's arriving with class, man!!!

One of my trucks is an 8.1, the truck is a 2001 3500HD. If I'm real nice to it, i can get 9 mpg. But to be fair, it's always loaded, and it pulls an 5500 lb twin dually trailer like stink. Except for the lousy gas milage, you don't even know the trailer is back there. It's one of the trucks I'm getting rid of, and replacing with a diesel.

You want to pull a race car? Do it with a Crew cab Diesel Dually :grinyes: That's arriving with class, man!!!

Yes, Crew Cab Duallies are very nice! Crew Cab anythings are nice IMO.

Hopefully, in a couple years I'll be pulling that racecar in my sig in a 24 or 28ft enclosed trailer with either an Extended Cab or Crew Cab 2500HD Silverado/Sierra (I really love how the GMC 3/4-ton trucks look) with the Duramax and Allison transmission.

Untill then, it'll get pulled on that 18ft. trailer its settin on with either my dad's truck or my 92 Sivlerado, lol. Gotta graduate college before that other set up happens, lol.

The Titan has the numbers but require premium fuel with a 28 gallon fuel tank in south florida that's close to 70 dollars. I have a 2001 chevy silverado, 40 series flowmaster dual side outlets, KNN 77 series air intake system, chromed out, 4.8L, 4:10 gear ratio - torque on tap baby, requires 87 OCTANE!!!

I'm not sure where you got your info on the Titan because my manuel says 87 octane. Tweny eight gallon tank takes me around 48 bucks to fill. Just some FYI. Still get around 16 mpg though. Not bad considering its A V8 5.6 305 horsepower 9400 pound towing capacity...

Ahhh man, get a good tune..and have no other option but to burn 93 octane..like me. :)

where is this video of slow's ???i want to see it

It was on LS1Truck.com The link's been down for a couple of days though.

It was on LS1Truck.com The link's been down for a couple of days though.

I'll check out the link tonight when I get home, and if it's down, I have another server to go with. I'll post up the other link when I get off of work. :biggrin:

Greetings,

You posted:
"If I were getting a new 1/2-ton truck though, I'd go for the 5.3 simply for the extra 35 lbs-tq. I'm not sure how well the 4.8 would handle a trailer weighing around 3500 lbs. I know that's well within their limits, but in the real world, 3500 lbs will effect how a truck performs, especially in a hilly region. Actually, I think if I could get a new 1/2-ton truck, I'd go with the SS and get the LQ9 6.0 with its 345 hp and 380 lbs-tq. A truck like that would look good pulling a racecar! "

Below I posted the link to another thread where I described my new truck - a 2 wheel drive extended cab 1500 with the SS engine, SS transmission and limited appearance wheels, tires, and suspension. Its ALL stock - its 345 hp and I get 19.5 to 20.5 mpg. Lots of power for trailering and I'm almost 500 pounds lighter than an SS or 4x4 and $10,000 less than an SS too.

Didn't mean to intrude - just a thought.

http://www.automotiveforums.com/vbulletin/showthread.php?t=328799

White Lightening

Hello,
I've been meaning to do an engine swap in my 96 gmc jimmy and I happened to come acrossed this neato thread. Thanks for all the info. Everyone in the blazer thread seemed to think the 5.7 was the way to go, but now I like what the 5.3 can dish out. What kind of aftermarket upgrades does the 5.3 have? I know the 5.7 has about every upgrade known to man...

Hello,
I've been meaning to do an engine swap in my 96 gmc jimmy and I happened to come acrossed this neato thread. Thanks for all the info. Everyone in the blazer thread seemed to think the 5.7 was the way to go, but now I like what the 5.3 can dish out. What kind of aftermarket upgrades does the 5.3 have? I know the 5.7 has about every upgrade known to man...

Is the 5.7 lighter than the 5.3?

Hello,
I've been meaning to do an engine swap in my 96 gmc jimmy and I happened to come acrossed this neato thread. Thanks for all the info. Everyone in the blazer thread seemed to think the 5.7 was the way to go, but now I like what the 5.3 can dish out. What kind of aftermarket upgrades does the 5.3 have? I know the 5.7 has about every upgrade known to man...

Is the 5.7 lighter than the 5.3?

The 5.7L is lighter than the 5.3L. If I were going to do it, I would go ahead and get a 6.0L. Just about every part is interchangeable from the 5.7 and the 6.0L. The 5.7 is an aluminum block(hence the weight), but I just feel the 6.0L would hold up better in a heavier application, such as a truck. Just my :2cents: :smile:

My jimmy isn't a fullsize, but currently it has the cast iron 4.3 v6 in it. I've read that either v8 has been seen to get equal or even better gas milage than the 4.3. I was leaning toward the 5.7 because of its aluminum block and because of its popularity (being a 350 and all).

I'm planning on getting my motor used out of some fullsize silverado, but the vast variety of engines gm has put out over the past few years is making my v8 engine swap search daunting.

The 5.7L is lighter than the 5.3L. If I were going to do it, I would go ahead and get a 6.0L. Just about every part is interchangeable from the 5.7 and the 6.0L. The 5.7 is an aluminum block(hence the weight), but I just feel the 6.0L would hold up better in a heavier application, such as a truck. Just my :2cents: :smile:

If the 5.7L is out of a 98-up F-body it might interchange with the 6.0L. But the only thing the same on the 2nd gen small blocks and the 3rd gen (what the 4.8/5.3/6.0 is excluding the 6.0 in the new Vette and GTO), is the rod caps, lol.

The 3rd gen. blocks are completely different from the 1st/2nd gen.

The bore and stroke for the 3rd gen engines are:

Displacement Bore Stroke Rod Length Block
4.8 3.779in 3.268in 6.275in Iron
5.3 3.779in 3.622in 6.275in Iron
5.7 3.898in 3.622in 6.098in Aluminum
6.0 4.000in 3.622in 6.098in Iron

The bore and stroke for 1st/2nd gen 5.7 are: 4.000in bore with a 3.480in stroke and I believe a 5.7in rod. I don't think the pistons would work from a 3rd gen 6.0 to a 1st/2nd gen 5.7 becuase of the longer rod used in the newer engines. Even the new 327s (which are really 325s) bore and stroke are totally different, lol. The old 327s (1st gen blocks) had a 4.000in bore and a 3.25in stroke. I dont really know what the stock rod length was though.

I think even the firing order is different on the new gen. blocks, and any 5.7L he finds from a GM truck will be a 1st/2nd gen design with an iron block and I think iron heads. I know my truck has the 1st gen block which is iron with iron heads, but 96-99 GM C/K series trucks have the 2nd gen. It may have aluminum heads, but I'm not sure.

Enough about that though, how is your truck coming along? Have you got to race anymore or has everything closed for the season?

Greetings,

You posted:
"If I were getting a new 1/2-ton truck though, I'd go for the 5.3 simply for the extra 35 lbs-tq. I'm not sure how well the 4.8 would handle a trailer weighing around 3500 lbs. I know that's well within their limits, but in the real world, 3500 lbs will effect how a truck performs, especially in a hilly region. Actually, I think if I could get a new 1/2-ton truck, I'd go with the SS and get the LQ9 6.0 with its 345 hp and 380 lbs-tq. A truck like that would look good pulling a racecar! "

Below I posted the link to another thread where I described my new truck - a 2 wheel drive extended cab 1500 with the SS engine, SS transmission and limited appearance wheels, tires, and suspension. Its ALL stock - its 345 hp and I get 19.5 to 20.5 mpg. Lots of power for trailering and I'm almost 500 pounds lighter than an SS or 4x4 and $10,000 less than an SS too.

Didn't mean to intrude - just a thought.

http://www.automotiveforums.com/vbulletin/showthread.php?t=328799

White Lightening

Howdy. Well, that truck sounds like the perfect truck for the go-fast pick-up guys, but the reason I like the SS is becuase its AWD, lol. To me, a 2WD truck is useless, simply because of where I live (eastern KY). Now I'm not saying if I had an SS i'd be driving it in the salt covered snowy/icy roads in the winter, but it would be capable of some bad weather driving.

2WD fast trucks are very cool, and I would love to have one to mess around in, but for an everday all-weather driver (which is what I need/have), they wouldn't be practical.

Back on to the subject though, when I'm able to buy a new truck (Senior in college, one more semester to go), then it'll be a 3/4-ton HD Silverado/Sierra, possibly with the Duramax diesel, even though I don't paticularly care for diesels (which I have said a million times on here and to most everyone I know, lol. I could be calleda hypocrite if I ever have a diesel I suppose, lol).

Anyways, sounds like a cool truck you have, and congrats on the good MPG. You may or may not believe this, but my current truck (92 Silverado K1500, SWB, Regular cab, 4WD, 350, auto) gets 18.3-19.6 mpg with a mix of city and highway mileage. That's on 93 octane though along with 70 Series Flowmaster cat-back exhaust and Poweraid TB spacer, which DO make a difference in mileage.

Hey Chevytrucks, ya keep saying when you get out of school you're gonna have all this and that. That's what I thought, now here I am almost 4 years out of school making over 50k a year, and still can't afford crap (2000 GMC Z71 Ext cab 4x4 5.3). I spend most my money on my house and stereo first, though. House is cheap here in Montana, but other priorities kick in. Not trying to say that is everyone coming out of college, I am more just whining about not getting the air intake, programmer, exhaust, and other mods to push my pickup under 15 in the 1/4. :)

Hey Chevytrucks, ya keep saying when you get out of school you're gonna have all this and that. That's what I thought, now here I am almost 4 years out of school making over 50k a year, and still can't afford crap (2000 GMC Z71 Ext cab 4x4 5.3). I spend most my money on my house and stereo first, though. House is cheap here in Montana, but other priorities kick in. Not trying to say that is everyone coming out of college, I am more just whining about not getting the air intake, programmer, exhaust, and other mods to push my pickup under 15 in the 1/4. :)

Lol, I'll probably be saying the same thing in 4 years, lol.

If the 5.7L is out of a 98-up F-body it might interchange with the 6.0L. But the only thing the same on the 2nd gen small blocks and the 3rd gen (what the 4.8/5.3/6.0 is excluding the 6.0 in the new Vette and GTO), is the rod caps, lol.

The 3rd gen. blocks are completely different from the 1st/2nd gen.

The bore and stroke for the 3rd gen engines are:

Displacement Bore Stroke Rod Length Block
4.8 3.779in 3.268in 6.275in Iron
5.3 3.779in 3.622in 6.275in Iron
5.7 3.898in 3.622in 6.098in Aluminum
6.0 4.000in 3.622in 6.098in Iron

The bore and stroke for 1st/2nd gen 5.7 are: 4.000in bore with a 3.480in stroke and I believe a 5.7in rod. I don't think the pistons would work from a 3rd gen 6.0 to a 1st/2nd gen 5.7 becuase of the longer rod used in the newer engines. Even the new 327s (which are really 325s) bore and stroke are totally different, lol. The old 327s (1st gen blocks) had a 4.000in bore and a 3.25in stroke. I dont really know what the stock rod length was though.

I think even the firing order is different on the new gen. blocks, and any 5.7L he finds from a GM truck will be a 1st/2nd gen design with an iron block and I think iron heads. I know my truck has the 1st gen block which is iron with iron heads, but 96-99 GM C/K series trucks have the 2nd gen. It may have aluminum heads, but I'm not sure.

Enough about that though, how is your truck coming along? Have you got to race anymore or has everything closed for the season?

I think there was just a misunderstanding on what 5.7L we were all talking about.lol
I thought he was refering to wanting a new 5.7L LS1 (346) 97up-vette, and 98 up TA/Camaro, and not the older 5.7L (350) found in the older trucks. Nothing will be interchangable from the older 5.7L to the newer LS-style engines, like you posted. I was refering to interchangability as being the LS1 5.7L to the newer LS-style motors in these trucks(4.8L,5.3L,6.0L). Most of my performance parts are for the LS1 5.7L, such as my cam and springs, as well as my transmission performance parts. Headers off of a LS1 will bolt up to our engines, but need to be heated and slightly bend to clear the frame differences from the truck and the car. I see a great number of LS1 guys these truck heads(5.3L), due to the increased flow over the stock LS1 heads. Our intakes also flow as well if not better than the LS1 intake manifolds(although I AM trying to get my hands on a new LS2 intake manifold. It's going to be some work modifiying it to work, but it is said that it flows better than the F.A.S.T LS6 intake that is so popular with these guys). My bud has a 2000 silverado with an LS1 5.7L in it, and he loves it due to weight reduction and the increased horsepower of the 5.7 over his old 5.3L. Well, I say 5.7L, but he actually punched it out to a 408. :evillol: All of his accessories bolted on from his 5.3L, and he only had to modify one bracket to make it all work. He currently has the F.A.S.T intake system. He went 11.78 ALL MOTOR! So far, that is the fastest all motor new body style truck I have ever seen or heard of.

Anyway,my truck is still kicking hard down the track. I'm going to Greenville(local track)tonight to see if I can hook it in this cold weather, then I'm driving 5 hrs to Hattiesburg Sunday to race in a little high 50-low 60 degree weather to see if I can get in the low 12s. I ordered my underdrive pulleys, so they should be here soon. Should be good for another 2-3 tenths.

Well, good luck with it.

Its good that all the parts from the 3rd gen engines interchange, becuase that is what made Chevrolets so popular with racing.

Well, good luck with it.

Its good that all the parts from the 3rd gen engines interchange, becuase that is what made Chevrolets so popular with racing.

Indeed. I thank the GM head guys for making our motors so similar. It really opened up the doors for our aftermarket. :biggrin:

Indeed. I thank the GM head guys for making our motors so similar. It really opened up the doors for our aftermarket. :biggrin:

Yeah, that is good.

It's good that they are also still push-rod engines as well. I know alot of people think this is a bad thing, but it really is a good thing. It keeps the actual size of the engine small AND cost down. Plus, push-rod motors make really good low end power.

Yeah, that is good.

It's good that they are also still push-rod engines as well. I know alot of people think this is a bad thing, but it really is a good thing. It keeps the actual size of the engine small AND cost down. Plus, push-rod motors make really good low end power.

I understand that Ford is developing a new push-rod V8, and it should be ready around 2009. Must be something to those little steel rods. Ford dropped a lot of money doing R&D on those OHC engines, for them to go back to push rods will cost another fortune.

I understand that Ford is developing a new push-rod V8, and it should be ready around 2009. Must be something to those little steel rods. Ford dropped a lot of money doing R&D on those OHC engines, for them to go back to push rods will cost another fortune.

They'll spend anything to catch up. heh,heh :iceslolan

Greetings,

I don't mean to sound stupid - but then - maybe I am. A friend of mine is a dedicated Chevy guy - and always mentions about push rod engines. Now I'm a 2004 Chevy truck owner and love mine. But what is the deal about push rod versus OHC? Thanks.

White Lightening

I'm not sure about the actual dynamic differences, but it always seemed to me that pushrod engines developed more torque at lower rpm, while OHC engines were high rev'ers. Torque vs. Horse Power.

GM has gone down the OHC road before. Remember the Olds OHC inline 6's of the early 70's. What a joke. And the OHC 4 banger. Europianized American cars.

I think OHC's lend themselves more to road racing than truck engines. In any case, I recently read that Ford is in the R&D stages of a new pushrod engine. I don't think they would spend that money if the SOHC and DOHC engines were doing everything they wanted, or expected.

It's very possible that Ford will run both types of engines in the future. using the OHC as a car engine, and the pushrod engine for trucks. But that would seem to be a very expensive proposition.

Just my :2cents:

Greetings Frankendart,

Thanks for your answer regarding pushrod versus OHC benefits. Still - if Ford is testing the idea of a new p[ushrod engine - it would be a huge decision process about-face. They just spent a pile of money on the new F-150 5.4 engine in 2004, redoing quite a number of things to make it more competitive.

The other thing that is strange to me - is that the Nissan is such a nice engine as well - and that one is OHC.

However - you have to tip your cap to Chevy for their LQ9 engine. No Turbo, Hemi, or Super Charger or similar mechanical "stuff" yet my LQ9 V8 Vortec 6000 has 345 horse power and 380 foot pounds and nice torque curve in the 1400 to 2000 range with my 3.73 axle ratio on my 2004 rwd 1500. With the power, torque, and smoothness - I still maintain 20 mpg highway or better. I'm not sure what the rwd Nissan does - but I don't think their numbers are that good with the OHC.

White Lightening

I understand that Ford is developing a new push-rod V8, and it should be ready around 2009. Must be something to those little steel rods. Ford dropped a lot of money doing R&D on those OHC engines, for them to go back to push rods will cost another fortune.

I read a small article about that in MT a couple months ago, that there was a possibility that Ford would go back to using push-rod engines, but didn't know they was serious about it.

I've also heard that Toyota may be goign to use a push-rod engine for their Tundra (or a possible heavy-duty truck). Now this is a rumor, but sicne Toyota joined the Craftsman Truck series, they HAD to use a push-rod engine, and if they get into to the Nextul Cup, they will HAVE to use a push-rod engine.

You know, that would be just somethign for guys like me (pro push rod) something to laugh at! It seems like everybody thinks that OHC is leaps and bounds better then push rods (mainly becuase of the media), when in reality, push rod engines usually make more torque and more hp, and get better fuel economy, lol (atleast GMs do).

Greetings,

I don't mean to sound stupid - but then - maybe I am. A friend of mine is a dedicated Chevy guy - and always mentions about push rod engines. Now I'm a 2004 Chevy truck owner and love mine. But what is the deal about push rod versus OHC? Thanks.

White Lightening

Well, push rod engine, while usually bigger in displacement then OHC, are MUCH smaller in size then smaller displacement OHC engines. Just go and look at your Vortec 6.0, and then go and look at a Tritan 4.6 (or any Modular Motor). You will probably think your engine is the 4.6 and theirs is the 6.0.

The reason for that big size for OHC is becuase the cam is located "over" the head, where as push rod motors have only one cam, located inside the block. And so, that's why the heads are so huge on OHC engines.

Now, what OHC engines do better then push rod engiens is rev. Its not uncommon for OHC engines to redline close to 7000 rpms (talking about V-8s, 4 and 6-cylinder OHC engines go well above 8000 rpms), where most push rod engines redline at 6000 (although the 3rd gen GM small blocks rev as high as 6500). The reason OHC engines can handle higher rpms is becuase of a free-er valve train. Basically, the cam is responsible for opening the valves in an OHC, where as in a push rod (OHV) engine, the cam forces a lifter to push the push rod that opens the valves.

Ultimetly, OHV engines are much cheaper to produce, and much more user friendly (that's why they are all you see in racing), and don't take up nearly as much space as an OHC.

Plus, they have that great, deep, rumble of an exhaust note, lol.

Thanks guys for the info on OHC versus pushrod. These chat threads really are interesting learning more about trucks like mine.

White Lightening

my friends dad just got this dodge pace car truck with the 5.7 hemi and my friends gmc denali truck with the 6.0 roasted his ass

I comletely disagree. I drive a 2500 with a hemi & a raced a 2500 chevy with the same body config. and i smoked him. No competition. I beat him by at least 6 car lengths.

I was behind at 1 car length STOCK against a lightly modded Hemi. Hemi's suck balls. I had just as much power (way more after my tune) and still got 5+ mpg better. Mine was a Z71 also.

I think I've posted this before, but I felt like it again!

I comletely disagree. I drive a 2500 with a hemi & a raced a 2500 chevy with the same body config. and i smoked him. No competition. I beat him by at least 6 car lengths.


Any idea what was in the Chevy? The only way you did this is:

A) You were "imaginary" racing the guy (you though you were racing him, but he had no idea what was going on), or

B) The Chevy had a diesel