Mahle OE GM 5.7L 350 LT1 V8 T .030 w/ P 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 1994 Buick Commercial Chassis Base 1994 Buick Roadmaster Base 1994 Buick Roadmaster Estate Wagon 1994 Buick Roadmaster