Thread: ??460/514??
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Old 02-07-2002, 06:16 PM
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Tom Wells Tom Wells is offline
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Cobra Make, Engine: E-M / Power Performance / 521 stroker / Holley HP EFI
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Hi craigayl,

The reason I changed the cam, lifters and valve springs was on the advice of engine building folks.

Presumably the high lift of the 514's cam at .647" was giving them heartburn in a street engine. More than one told me I'd need to expect to change the valve springs every 3 to 5 thousand miles, not to mention setting the valves at least that often.

Since mine's going to get some street use above those mileage figures (I hope a lot more!), I thought I'd try for "maintenance reduction" by going hydraulic.

The highest performance hydraulic cam turned out to be a hydraulic roller setup. Since a lot of production engines have used this, I'm hoping I made the correct decision!

Fingers crossed, and fire-up a month or so away,

Tom
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