This listing is for a set of 8 Speed Pro Power Forged +.030+ over sizes Pistons compatible replacements Ford 460 V-8 - 4.390" bore (at +.030"). These are Recessed head .180" deep. DurOshield skirt coated pistons. Compression distance: 1.756". 5/64" 5/64" 3/16" ring grooves. 1.040" pin diam. - pins included. For stock length rods. Press-fit PINS only & Stock 3.850" stroke.