Mahle OE GM 5.7L 350 V8 Dish Coat .020 w/ P Aftermarket Version Piston Set (Set of 8)MAHLE Original pistons are OE quality and have the same great OE features such as compensated ring grooves to assure proper ring loading and oil control, as well as expansion controlled designs for small fitting clearances to reduce engine noise, wear, emissions, and improve oil control. This Part Fits: Year Make Model Submodel 1981 Buick Century Base 1981 Buick Century Estate 1981 Buick Century Limited 1994 1996 Buick Commercial Chassis Base 1980