Mahle OE GM 4.3L V6 DISH .020 w/ P Aftermarket Version Piston Set (Set of 6)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 1985 1994 Chevrolet Astro Base 1985 1994 Chevrolet Astro CL 1985 1994 Chevrolet Astro CS 1987 1994 Chevrolet Astro LT 1985