1967 289 heads on my 95 roller motor

1995greenstang said:

I am trying to figure out what i need to make they exchange i dont want to get valve clearance issues i know i need hardened pushrods but what else? thanks for any help:SNSign:

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You don't necessarily need hardened pushrods, you only need those if these heads have been converted to screw in studs with guideplates. You WILL need to buy a pushrod length checker and get custom pushrods made to fit, early SBF heads on a 302 take some STRANGE length pushrods. That should just about do it.
HTH
-kyle
PS: If these heads still have the press in studs, it might be a good idea to get them converted to screw in studs, a cam with violent action (like a hyd roller) or a cam over .500 lift will rip the pressed in studs out sooner or later, how soon depends on the cam
PPS: Those heads aint anything special, why bother?