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Old 11-03-2023, 06:08 PM   #6
Chipper Chapman
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Join Date: Jan 2004
Location: Belmont N.S. Canada
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Default Re: Flat tappet lifter failure

Quote:
Originally Posted by goinbroke2 View Post
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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