Offshoreonly.com - 500 hp specs

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bigboat28

12-24-2014 03:02 PM

How much hp can you get out of a hp 500 with a cam upgrade, when running dry exhaust?

Unlimited jd

12-24-2014 03:26 PM

Cam, lifters, springs, retainers, and rocker arms, around 570.

bigboat28

12-30-2014 12:55 PM

How much torgue do they make?

bigboat28

12-31-2014 03:34 PM

Does anyone know what year on the hp500 s they went from the ribed valve covers to the stamped ones?

Griff

01-02-2015 12:44 AM

1994-1995 would prob have ribbed ones. 1996 blue engines had the stamped ones with decal plate.

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