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The MAHLE plain piston ring set is specified for Chevrolet truck 366 engines (1966–1990) and GMC 366 engines (1969–1990). MAHLE rings are engineered to meet OE requirements, reducing friction and ring mass while minimizing oil consumption. They focus on longer service life, improved sealing and durability under real-world conditions, representing current piston ring technology suitable for rebuilds and engine overhauls.
Mahle Rings Chevy Truck 366 Eng 66-90 GMC Trk 366 Eng 69-90 Plain Ring Set
