7 USED WISECO CUSTOM FORGED PISTONS FOR 532" BBC WITH SR20 HEADS. BLOWN ALKY DEAL, COMPRESSION ROUGHLY 12.5 TO 1, ABOUT 40 PASSES ON THEM. BORE IS 4.600", COMPRESSION HEIGHT IS 1.245", FOR 4.00" STROKE WITH 6.535" ROD. COMES WITH PINS AND OIL RING SUPPORT RAILS. THE 8TH PISTON ATE A VALVE, 2 OF THESE HAVE VERY SLIGHT DAMAGE, CAN BE SEEN IN PICTURES. NOTHING THAT I WOULD BE AFRAID TO RUN. RING PACKAGE IS .017 DYKES 1/16 3/16. SHIPPING COST INCLUDES INSURANCE. MESSAGE ME WITH ANY QUESTIONS.