This listing is for a set of (8) Coated skirt pistons and matching Moly rings set compatible with 1970-76 Car (USA) Chevrolet 454. Pistons are Domed head .340" high (30cc) w/2-valve reliefs. 5/64" 5/64" 3/16" ring grooves .989" pin diam. - pins included. For stock length 6.135" rods Press-fit or floating Pins .Stock stroke. Available in your choice of sizes. Click size needed before adding to Cart.