Mahle OE supplies this Moly ring set intended for race engine rebuilds, listed for Chevy and Ford small-blocks and Chrysler applications. The description cites Chevy 302, 327 and 350 race engines, Chrysler 360, and Ford 289 and 302 race engines, identifying it as a moly ring kit for those engines. It serves as an OE-branded replacement option when moly rings are required.
Mahle Rings Chevy Race 302 327 350 Engs Chry Race 360 Eng Ford Race 289 3 Moly Ring Set