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Need help on a 400 sbc
Just got a 72 impala conv starting talikng the engine apart for a performance rebuild then out of curiosty i took down the casting number to find out what im working to find out that its a 4 bolt main should i scrao it or should i try to find something thatll work with it
? thanks
Last edited by chevy lover; 03-14-2006 at 02:12 PM.
Reason: forgot something
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