92 S10 engine Swap 2.5 to 4.3 ?'s
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Steve_s10 02-22-2006, 01:02 AM
I bought a 92 S10 and the 2.5 was practically gone and i replaced it with another 2.5. It to was knocking, So now I've bought a 91 Chevy astro complete with motor (4.3) and all. I'm looking for any info on the wiring and fuel injection matching up or if I have to cut and splice everything and pt a carb on it. My questions are all about the fuel injection and the computer wiring. what all has to be changed? Any info on this project would be greatly appreciated. rlith 02-22-2006, 06:04 AM You'll need the following to move the 4.3 into your 2.5 s10 Engine Engine harness for your year blazer and matching ECM All associated sensors for that year All accessories Misc parts that are different from the astro and blazer (rad, coolant recover tank, stuff like that) DRAC unit dmbrisket 51 02-23-2006, 12:49 AM fuel pump, dont forget that bugger... DRAC unit? rlith 02-23-2006, 07:42 AM fuel pump, dont forget that bugger... DRAC unit? The drac converts analog signals (such as signals from the VSS) to the ECM. Also it has rear gear ratio and tire size info built into the chip. dmbrisket 51 02-23-2006, 07:49 PM ok, your talken the chip on the back of the cluster then right rlith 02-24-2006, 07:16 AM ok, your talken the chip on the back of the cluster then right No, the DRAC is the box attached to the ECM Mango™ 04-03-2006, 03:51 PM what about going the other way, I have a 91 4.3 liter v6 187k miles, I want to drop in a smaller moter to save on gas, it will be for my son, back and forth to college. Is there any motor that will fit that one? The one I have is burning oil, valves and rings are hosed. dmbrisket 51 04-03-2006, 04:09 PM to go down from a 4.3 to a 2.8 or 2.2, you would need those moters pcm, wiring, fuel pump, and accesories Mango™ 04-03-2006, 04:49 PM what about the tranny, 60 degree to a 90 degree? Related Links Enter the largest automotive community on the planet! |
