Include: 40 x Piston Rings-Standard Size, Replace OEM: 2M4978, a Complete Set for One Engine, are same with OEM standard quality, perfectly matching your original car, and can be installed directly
Fitment: Moly Piston Rings for for Chevy 4.8L 5.3L LC9 LS4 1999-2015, Moly Piston Rings for GMC 4.8L1999-2015, Moly Piston Rings for GMC 5.3L LC9, LS4 1999-2013 Engines, more detailed fitment please see bellow
Standard Specifications: Bore: 96mm/3.779 in. First Ring: 1.5mm/0.0591in. Second Ring: 1.5mm/0.0591in. Oil Ring: 3.0mm/0.118in.
When to replace: Molybdenum Coating-Reduce friction and better absorb fuel, Piston Rings help you solve problems: decreased engine performance, insufficient power, increased fuel consumption, oil burning, or blue smoke from exhaust, cylinder pulling etc.
Why to replace: High quality Stainless steel expansion, surface oxidation, phosphating and nitriding treatment,good sealing performance, low friction force, Seal the gap between the piston and cylinder wall to improve fuel efficiency and engine performance
Premium Support: We focus on product quality and customer service, our customer service is top-notch. If you have any difficulties or needs, please contact us at any time