Set of 8. 4.030 bore for 3" stroke crank with 5.7" rods. Comp. height of 1.805. These were for a project that I will not finish. Work done by Patterson Racing. Polydyne coated skirts, bisecting oil holes, forced pin oiling, Blob dome, forging # 66. Oil groove done, top grooves not done. New .927 X 2.5" pins included. $350.00 for pistons and pins. Also, I have a new set of total seal rings for these pistons. .043, .043, 3mm. 150.00 for rings.