OLDSMOBILE 425 30 OVER ,GXS FORGED PISTONS (4.155 BORE ) AND RING SET

HERE YOU GUYS GO . WE HAVE GOT TOGETHER WITH ONE OF THE BEST PISTON COMPANY IN USA TO DESIGN YOU GUYS A NEW STYLE PISTON . THESE ARE A SET HIGH QUALITY FORGINGS WITH NEW TECHNOLOGY X GROOVE IN SKIRT TO RELEASE PRESSURE THAT CAUSES CARBON TO BUILD UP ON THE SKIRT OF THE PISTONS  . THIS TECHNOLOGY HAS BEEN AROUND FOR THE FORD AND CHEVY PISTON FOR A LONG TIME . THESE PISTONS ARE HIGH COMPRESSION FORGED PISTON WITH VALVE RELIEFS . THEY TAKE A 980 WRIST PIN THAT IS INCLUDED . THEY COME WITH LOCKS FOR FLOATING OR CAN BE PRESSED IN FOR STOCK RODS . THIS PISTON RING COMBO COMES WITH EVERYTHING YOU SEE IN PICTURE . EVERYBODY KNOW TOTAL SEAL RINGS ARE ONE OF THE BEST RING COMPANY AROUND . THIS SET IS A 4.155 BORE , .980 WRIST PIN , AND A 1.625 COMPRESSION HEIGHT .