Mahle Moly piston ring sets listed for Chevy 400/396/402 and Olds 425/455 race engines supply moly-coated rings intended for racing use. These sets are specified to match those particular race engine displacements and are presented as MAHLE's high-quality moly ring option. They target engine builders who need ring sets matched to those classic American race engines.
Mahle Rings Chevy Race 400 396 402 Engs Olds Race 425 455 Engs Moly Ring Set