Maximum Valve Lift, Stock Head ??

[Randy]

Stock ported and Polished Heads, CC980 springs, CC cam .447-..447 lift , I have a set of T&d 1:65 ratio rockers i want to use, will this much lift have any effect , in regard to coil bind or or valve guide interference
Also valve to piston clearence ? 85 block milled.010 , heads milled .005 , single steel shim
Thanks
Randy

 

[frankg]

You should have zero problem but it's always safe to check. Usually only over .500" lift does it get close. Frank

 

[Louie L.]

Valve guide clearance is where ive seen most problems. I dont know the max tho.

 

[Russ Merritt]

If that lift was based on a 1.55 rocker, your still ok with the 1.65s. Lift will be .475 with the 1.65s. Not even close

 

[gnx7]

what about a Crane billet roller (ATR) 214/210 with 1.65 T&D's?

I'm having my machine shop double check it.... but would like to confirm others are running this setup.

-GNX7