What is the difference between an 1989 350 5.7L and a 1996 350 5.7L vortec is the heads,block or just the intake with fuel injection?
I have a 1996 gmc Sierra with a 305 5.0L vortec engine I want to rebuild it and
get more horsepower not alot more just for it to sound like it does will be ok.
I have an recently rebuilt 1989 350 5.7L can I take parts from it to put on the
other motor? I'm trying to sell the other which would save my problem.
Big differences, The hole top of the engine is redesigned from your standard 350. Vortec fuel delivery system on that one is a Port fuel injection with a different head design that is of a high flow head compared to earlier years. The Vortec motor comes with a roller cam set-up so the block is a little different than earlier years as there is bolt holes in the valley for the push-rod guide, other wise the same block. You could take a Vortec set-up and put on a earlier block, but would have to use a different push-rod guide set up. Your question is confusing to me as it sounds like you want to rebuild the Vortec motor? I think I get it and the answer is NO, because of the ecm set-up in the 96". You need the Vortec set-up for it to run in your vehicle. Realistically you can do anything but requires a lot of work.
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