Suburban 5.0L 1981, Dish Top Engine Piston Set (P1503(8)STD) by Enginetech. Superior size and weight grading within each set. Most Enginetech pistons are decked 0.010" to 0.020" to compensate for oversized bores and head/deck milling. Enginetech pistons are manufactured with state of the art materials to match OE requirements. Offers cast aluminum, hypereutectic, and forged applications. Treatments such as skirt coatings, anodized heads & Ni-resist inserts are used as required. Superior quality. Enginetech specializes in providing high performance engine pistons for engine rebuilds for domestic, import, and high performance application. Developed to ensure excellent performance, this product is made in accordance with the most stringent standards to meet or exceed your expectations.