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Old 05-05-2005, 04:10 PM
AmericanPie AmericanPie is offline
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Join Date: Feb 2002
Location: Camarillo, CA
Cobra Make, Engine: To be determined
Posts: 9
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Default Cams: solid flat tappet vs. hydro roller?

I've been wondering why so many guys are using hydraulic roller cams these days, instead of the traditional solid flat tappet cams that were installed in muscle cars including Cobras. It's always been my understanding that, even given the extra lift available with a roller, the solid cam would give all-around better performance. (A solid roller would be another story, however.)

Im suppose the hydro roller makes more sense in a relatively low-speed stroker motor that won't see more than about 6000 rpm; but if I were sinking big bucks into an aluminum Shelby FE motor capable of revving to 7500 and wanted "the best of everything", it seems like a hydraulic cam would be compromising its performance potential. Am I missing something here?

This, of course, assumes one doesn't mind the minor inconvenience of adjusting valves every few thousand miles.
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