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Old 06-17-2012, 05:51 PM
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The 502 engine is a marine or a crate engine
never installed in any car or truck from the factory.

4 bolt mains

Gen IV and GEN VI head will interchange-----GEN V needs a special head gasket.

Gen V engines have a stamped steel front timing cover with 10 bolts
Gen VI engines have a cast aluminum cover with 6 bolts

Gen V are flat tappet cam engines
Gen VI are roller cammed engines
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