Thread: How much horsepower to expect?
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Old 08-10-2006, 08:47 AM
Wayne Maybury's Avatar
Wayne Maybury Wayne Maybury is offline
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Join Date: Mar 1999
Location: Quebec, Canada, QC
Cobra Make, Engine: Johnex 427 S/C, 351W, 472 HP, 444 lbs. torque
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A 351W bored .030" results in 357 cu in unless it has been stroked which was not indicated.

My 351W (357 cu in) has a Comp solid lifter flat tappet cam, flat top Weisco pistons, Ford "M" heads, roller rocker arms, 750 dp Holley, Edlebrock duel plane intake, etc, etc. The heads were just cleaned up, not ported. This engine produced 472 hp at 6300 rpm and 440+ lbs of torque around 3500 rpm, which is more than enough for the street.

It sounds to me like there should be quite a few ponies still untapped in your engine.

Wayne
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