I'd run these and not look back. Hone it with torque plates and torque the mains to 85 ft lbs. Hone it just enough to clean up the ring travel. Commando pistons will ping on premium gas with an E-4 Isky Cam. Even with the Felpro Gaskets. 273 2 barrel pistons are almost zero deck, measure yours. Good Job, and good luck.
65dartcharger, what are the part numbers on the pistons?
