Mahle Rings GM 6.2L LS3 2007-2011 LS3 L99 Moly Ring Set

Mahle Original piston ring sets are designed to be installer-friendly, pre-lapped to seat immediately, virtually eliminating break-in time. Ring materials, coatings, and tension are optimized for reduced friction and extended life. Compression rings feature a barrel-faced contact area for efficient compression and CNC-controlled gap chamfer to optimize compression and reduce blowby. Intermediate rings have a reverse twist design for better groove side sealing and taper race machining to enhance contact. The CP-20 oil ring assemblies feature a 20-degree ear angle for optimal side seal against the cylinder wall, and a special chemical polish on the oil ring expander offers enhanced oil drainback. This set is for 2008-2017 6.2 LS Engines with a 4.105" bore.