Quote:
Originally Posted by bober
what is the necessary parts needed to swap a V8 into a 83 GM 1/2 ton if it will work ? Has a 350 auto w/air now . Thanks for any help !!!!
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A local did this with his squarebody that I saw in the 90s, this is to the best of my recollection.
He said it was a bolt in for the mid 70s 400. He used the block side uppers from an F-body like a second gen and they slipped right on to the frame side lowers of the small block. Makes sense to me due to GM dropping this engines into the same frame on F-bodies that share both the SBC and Pontiac. This would put the drivetrain in the same spot as the sbc and allow you to use the old driveshaft.
He used a corresponding TH400 for a BOP. Obviously whatever matches what's currently in it.
I think the AC compressors are the same but mount on opposite sides so you may have a lot slack to coil up or route because the SBC puts that on the driver side.
Rad hoses are probably Fbody also.
You have a lot of room and likely can use whatever exhaust manifolds you have.