Check my post on the mild 440 build thread on the Q&A forum. They will work with any open chamber OEM head. Yes, it will require some measuring and probably some extra machining, but the end result is worth it.

If you use the closed chamber 915 or the Edelbrock 84cc or the Stealth head you will need to machine the "quench domes" down until they are at zero deck. That's not a bad option, because then you have real squish plus the better flow of the aftermarket heads.

R.