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MAHLE plain piston ring set for Buick 400 (1978), Olds 400 (1975) and Pontiac 428 applications (1967–1980) brings OE‑grade ring technology to engine rebuilds. MAHLE prioritizes reducing friction and ring mass while minimizing oil consumption to help extend service life. These rings reflect advanced piston ring design driven by original equipment requirements for improved oil control and durability in restored engines.
Mahle Rings Buick 400 Eng 1978 Olds 400 Eng 1975 Pontiac 428 Eng 67-80 Plain Ring Set
