Set of (8) Forged Coated Pistons compatible replacements for Ford 428 FE Super Cobra Jet V-8 - 4.160" bore (at +.030"). Recessed head .085" deep x 2.620" diameter w/4-valve reliefs. DurOshield coated piston skirt . 5/64" 5/64" 3/16" ring grooves Pin diameter: .975"; pins included For stock length rods Press-fit or floating Pins. NOTE: Piston rings NOT included!!