Flat tappet lifter failure - CLASS RACER FORUM

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Flat tappet lifter failure

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11-03-2023, 06:08 PM

Chipper Chapman

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Join Date: Jan 2004

Location: Belmont N.S. Canada

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Re: Flat tappet lifter failure

Quote:

Originally Posted by goinbroke2

My cam is .398 and 250@.050 Never had an issue breaking in dozens of other cams but.. should I put light break in springs on then switch once its broke in??

I've been using GM EOS for 40 years and have never had a cam lose a lobe, but again, I've never run the spring pressures and lobe profiles like this either.

100% start with a lighter spring

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Chris Chapman
1969 Chevelle
NHRA F-G/SA 1090

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