yes they will work fine & the pistons are in the hole far enough that a potential V/P contact ain't a worry. You would need to CC or guestimate the CC's & see how far in the hole the piston(s) are when you pull the heads. Actual CR is in the 7's right now. I would install the heads/change the timing set & adv it 4 deg & dial in the dist subsystems. EDIT I will assume you will be in the eights & not bother with CCing unless you are into that & be sure to check intake fitment with the heads being significantly milled. I think the felpro 1243's intake gaskets are a 1/16" thick & they can be doubled up tho pricey. I would find some of the thin composition head gaskets. Shim types will work if they can be found AND the decks/heads are dead flat.