FLYWHEEL/FLEXPLATE G20-VAN Question ??

:) [B]I am putting a 305 /5.0 engine from a 1991 Camaro into my 88 G20 Van ...I am replacing the worn out 350/5.7 that came with the van ... Can I use the same Flexplate or as some call it "Flywheel" that was on the 5.7 ? I was told to be careful about this because some engines are balanced differently ? Everything about these engines SEEMS to be identical except for the cylinder bore both are single piece rear main seal engines ... I don't want to put my van all together and then find I need a different flexplate ? and I don,t know how to be sure I got the right one ? I am going to post this on the camaro forum too ...THANKS GUYS ! BOB

as long as flywheel same size cant see why not. thickness is important too

UPDATE ! Well I got the rebuilt 305 roller lifter TBI engine from the 91 camaro into the 88 G-20 van no problem ! Everything bolted right on sure was a lot of stuff ...Runs great ! I used the original front dampener and flywheel or as some call it the "flexplate" ... THERE IS NO VIBRATION ! it is very smooth at all engine speeds ... I had the timing of valves and ignition right on the money just turned the key and it was running ! ...oil pressure is 60 psi even at idle ... Oil pressure was there within one second ! since I had filled the engine with oil and pre-oiled the engine on the engine stand ... Van seems to have as much power as it did with the old 350 ...So I am very happy with the outcome ... :grinyes: Bob in Michigan

Just to clarify: Automatic transmissions use a flexplate, manual transmissions use a flywheel. A flexplate is much lighter and uses the weight of the torque converter to accomplish what the flywheel does.

Just to clarify: Automatic transmissions use a flexplate, manual transmissions use a flywheel. A flexplate is much lighter and uses the weight of the torque converter to accomplish what the flywheel does.




FLEXPLATE Worked Fine ... I GOT over 4000 miles on the engine now no problems ... Drove it on vacation trip ... THANKS OLD MASTER AND EVERYBODY FOR THE INFO .... BOB in Michigan

Bob,
Thanks for the feedback and the follow-up. Most times there is no final resolution posted. Good job on the swap. Many happy miles to you. Don't you just love small blocks? Zora Arkus-Duntov certainly knew his ass from his elbow.

Bob,
Thanks for the feedback and the follow-up. Most times there is no final resolution posted. Good job on the swap. Many happy miles to you. Don't you just love small blocks? Zora Arkus-Duntov certainly knew his ass from his elbow.

I like to see those follow ups too DF its kind of a thank you ! to all the guys who replied ... I sure like those small blocks too ... BOB