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Marking your HiPo Harmonic Damper

Started by NC TRACKRAT, September 16, 2019, 03:48:39 PM

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shelbydoug

Quote from: kjspeed on September 18, 2019, 10:26:50 AM
So you SUBTRACT .006" for aluminum heads and ADD .002" for cast iron to the cam card "hot" lash settings?

Yes.
68 GT350 Lives Matter!

kjspeed

Great info, thanks Doug! I wouldn't have guessed that there would be a .008" difference between aluminum and cast iron heads.

Also, just to clarify, would these adjustments apply equally to an FE or 289/302? And for flat tappet as well as solid rollers?
1968 Shelby GT350
1968 Mustang GT S-code
2009 Mustang Bullitt

Drew Pojedinec

Quote from: kjspeed on September 18, 2019, 10:36:05 AM
Also, just to clarify, would these adjustments apply equally to an FE or 289/302? And for flat tappet as well as solid rollers?

Not Doug, but clearance is clearance.
You can always recheck hot to see how much it has changed if curious. Valve lash can be a tuning tool as well (although a fairly minor one)

Gets real interesting setting up an aluminum block, aluminum head engine 😂