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Tim Tim is offline
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First recorded activity by BoatBanter: Nov 2006
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Default How to determine the hp, on a Mercruiser 5.7?


jamesgangnc wrote:
Boring the
cylinders only adds a few cubic inches, 30 over is about 6 cubic
inches. Cam, heads, intake, and carburation have the most effect on
these engines.



Correct. But I suppose in the whole long run, and with exception of
running the drive train on a dynomometer, there's really no way of
telling if the re-man engine is truely build to O.E. origional stock
factory specs, unless the engine was torn down and spec'd out.

Which obviosly isn't worth the hassle.