The MAHLE OE .020 piston set for GMC passenger and truck 250 engines (1966–1984) delivers OE-quality cast pistons with compensated ring grooves and expansion-controlled dimensions to improve oil control and reduce noise. Pistons come ready for installation with mounted rings, plus wrist pins and clips included, supplied as a set of six for complete six-cylinder rebuilds.
Mahle OE GMC Pass & Trk 250 Eng 1966-84 .020 Piston Set (Set of 6)