Set of (8) +.030" over size power forged pistons and moly top ring set compatible with 1970-72 Chrysler Dodge 440 Six-Pack Cars w/3-2-Bbl. Carb. Pistons feature Flat head w/4-valve reliefs. Coated skirt pistons. 5/64" 5/64" 3/16" ring grooves. Stock 6.760" length rods. Press-fit only, pins included!! Stock 3.750" stroke