The Mahle OE moly piston ring set is specified for Chevy race small-block applications including 400, 396 and 402 engines, and Olds race engines such as 425 and 455. These moly ring sets are intended for high-performance race rebuilds where correct ring sizing for those engine families is required, giving engine builders a direct part choice for compatible race displacements.
Mahle Rings Chevy Race 400 396 402 Engs Olds Race 425 455 Engs Moly Ring Set