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don71 · 10-08-2007, 07:25 PM

I bet that car rides like your living room couch

The olds 350 and the chevy 350 have about....hmmm 6 bolts in common. They are very different. Olds engines look a whole lota like. You need to check the block casting # to be sure. The Olds big block is simply a raised deck version of the small block.

To id the engine for sure look here. If its a 350 the number will be 395558. The pictures below show a 403 and a 425.

If its a 455 the number will be 396021.

I would like to suggest you buy these valve cover gaskets, they are awsome.

I say have fun and enjoy.

10-08-2007, 07:25 PM	#3 (permalink)
don71 feed the pig Join Date: Jun 2007 Location: Central Missouri Posts: 170	I bet that car rides like your living room couch The olds 350 and the chevy 350 have about....hmmm 6 bolts in common. They are very different. Olds engines look a whole lota like. You need to check the block casting # to be sure. The Olds big block is simply a raised deck version of the small block. To id the engine for sure look here. If its a 350 the number will be 395558. The pictures below show a 403 and a 425. If its a 455 the number will be 396021. I would like to suggest you buy these valve cover gaskets, they are awsome. I say have fun and enjoy. __________________ 1971 Cutlass S 455/th400 3.23 rear---new interior allmost done.