call your machine shop and have him tell you if it is a 3in main or a 2 1/2 main crank.If a 3in main crank it wil fit in any 400 block.If a 2 1/2 main good luck finding a block as they only made 25 of them.If a 3in main you can use and RA V head but need a RA V 400 intake.If a 3in main you can also use any std pontiac or aftermarket head and intake.A set of RA V heads and intake in this market is in the 9K range IF you can even find them forsale.Tom
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