Do I have to flycut??

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Oct 3, 2006 | 09:58 PM

that240guy

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Do I have to flycut??

do you have to flycut the pistons if you are using stock 241 heads with the TREX or TRAK cam. I am trying to decide which cam to go with and I am trying to make a shopping list of things I need. Which springs are optimal for a cam this big? Will my stock lifters and rockers be ok?

Thanks!

Oct 3, 2006 | 10:03 PM

Studytime

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No flycutting required it was a design requirement by Thunder Racing that they fit in a stock motor. Your lifters and rockers will be fine. The PRC dual springs or even better the Comp 921s would work.

Ben T.

Oct 3, 2006 | 10:09 PM

that240guy

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Thanks Ben!!

Oct 3, 2006 | 10:12 PM

BriancWS6

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Quote:

Originally Posted by Studytime

He's right, it will fit. But that's not with the textbook .080 intake/ .100 exhaust clearance. But people do it all the time.....

Oct 3, 2006 | 10:15 PM

that240guy

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Do you know where the clearance ends up or if anyone has had piston to valve clearance issues without flycutting?

Oct 3, 2006 | 10:25 PM

Studytime

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I doubt there are any common problems. This camshaft was designed for cam-only setups and to work with a stock motor. The fit is close, but it clears.

Perhaps give Thunder a call?

Ben T.