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valve piston clearance advice with cam and rockers.

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Old 01-26-2021, 12:53 AM
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Default valve piston clearance advice with cam and rockers.

Hi, so im running a custom clay smith cam which was meant for 1.7s but i bought comp 1.8 roller rockers. I have pac 1218 beehvies and should be running .619 lift. Photo is cam card. Should i have good clearence running stock headgaskets on my 241 heads. Also can pac 218s hold to .619 at 6200 rpm?

Thanks Nikolai

Old 01-26-2021, 08:09 AM
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Just check it.
Old 01-26-2021, 08:17 PM
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PAC 1218’s are rated to .600” lift.
Old 01-26-2021, 09:43 PM
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PAC 1219's might be a better choice.
Old 01-26-2021, 11:23 PM
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Originally Posted by dangerguynikolai
Hi, so im running a custom clay smith cam...

Photo is cam card.
I hope you didn't pay a premium price for that "custom" cam

It's just a common re-boxed Sloppy Stage 2, Jegs or Trick Flow camshaft.





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