I recently got ahold of a 2 Bolt main 350 Chevy out of a 69 camaro. The guy told me the engine wasint original to the camaro. He was wanting to put an LS1 in it so he sold it for only 375$. I bought it mostly for the block to make into something for my 83' Daytona TransAm, I was told it does fire up and run, but i didint buy it for that. The casting code is 3970014, and it either came with a 2 or 4 bolt main. He said it was probably the 2-bolt. Anyway, enough rambling, Im hoping that 375 wasint too much for the engine (complete, but bought for the block) and hoping there is a way to turn this into something really nice.

A side note, After working on a CrossFire, I want everything to be as manual as ever, No ECMs.

 

New 3.750 stroke crankshaft and new pistons to suit = 383
Exact size will be determined by how far you have to bore the block out to clean it up.
Pray block is not bored 60 over already being as old as it is (3970014 .....68-79 350ci 200-255Hp)
possibly having been rebuilt ( even more than once ) in the past

 

If it just a question of a 2 bolt main,many look for a two bolt block and then put on splayed aftermarket mains for a much stronger block.