You have the trw dome pistons in there now? Put one at tdc & see what deck height you have with the dome. You'll need a head gasket to give you enough clearance(piston to head)& .035"-.040" piston to head clearance for correct quench would be ideal & if you have more than that you're good but wont have a quench benefit. I'd CC the old/new head(s) to calculate what your actual CR is for reference.