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Old 01-22-2006, 12:53 PM
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marine pistons and rods

are marine pistons and rods better or stronger parts??

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Depends on what engine. but, most are the same as regular production automotive. Gaskets,cam and timing sets are usually the only internal differences marine/auto.
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Old 01-22-2006, 10:14 PM
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It depends on which engine it comes from.

Most Mercrusier engines use only the best GM components. Forged crank rods and pistons. 4 bolt blocks and good flowing heads.
but when you get into late model 454 496 etc engines. they used some peanut heads and poor pistons.

if it was a higher HP version of the engine, it has the best stuff. If it was a lower HP version then they were run of the mill components.
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