Pistons

Ok dave, lets back up. the .030 440 that you had built... with the KB quench dome pistons.... I'll assume the block was decked and you are running a .040 cometic gasket right? So the actual dome height from summit says the dome is .075 tall, assuming you zero decked the non dome side of the piston, so minus the .040 compressed gasket that leaves you a true .035 of dome going above the deck. Id still get a bore scope from Harbour frieght just to be sure. If you pump up the HYD lifter at high RPm stuff could start touching.... not on the dome side but the Non- valve notched side of the piston. Just trying to be helpful, NOT KNOCKING ANYONE here. peace, love, and fried chicken for all!