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*Billla* · 04-09-2008, 07:15 PM

Roller *tip* rockers have been shown to add a few (3-5) HP at the very top end, but IMHO this is due more to the stiffness and fulcrum location of the arm vs. any benefit from the roller tip. CompCams claims 15-20HP increase (but does not provide a dyno chart) - I'll just note those must have been some lousy stamped steel arms

Full rollers provide NO benefits below 6000 RPM; everybody gets into the "less friction" school of thought when it's really about valvetrain stiffness. On a stocker, it's a waste of time and money - they also likely won't fit under your existing rocker covers.

There are better ways to find horsepower

You could consider going to 1.6 rockers (Crane and CompCams make stamped-steel sets for about $90) for an increase in lift and duration if your heads are up to it.

04-09-2008, 07:15 PM	#2
Billla Account Suspended Join Date: Sep 2005 Location: Monroe, WA Posts: 3,815	Re: Roller Rockers Roller tip rockers have been shown to add a few (3-5) HP at the very top end, but IMHO this is due more to the stiffness and fulcrum location of the arm vs. any benefit from the roller tip. CompCams claims 15-20HP increase (but does not provide a dyno chart) - I'll just note those must have been some lousy stamped steel arms Full rollers provide NO benefits below 6000 RPM; everybody gets into the "less friction" school of thought when it's really about valvetrain stiffness. On a stocker, it's a waste of time and money - they also likely won't fit under your existing rocker covers. There are better ways to find horsepower You could consider going to 1.6 rockers (Crane and CompCams make stamped-steel sets for about $90) for an increase in lift and duration if your heads are up to it. Last edited by Billla; 04-09-2008 at 07:22 PM.