Mahle Performance Series Piston Rings - 4.030 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Ductile - Plasma Moly - 8-Cylinder RG40003S Available in three finishes

Available in three finishes

Meets SFI 45

6 pass Tube & Fin style cooler

1350WJ Series

Gibson has incorporated rubber mounting points and a compression spring fitting

Mahle Performance Series Piston Rings - 4.030 in Bore - File Fit - 1/16 x 1/16 x 3/16 in Thick - Standard Tension - Ductile - Plasma Moly - 8-Cylinder RG40003S Available in three finishesEvery MAHLE Motorsports piston is backed by 90 plus years of racing heritage and technology. From the invention of the first aluminum piston to the most advanced design and machining processes being used today, MAHLE delivers unmatched performance and durability. MAHLE's light weight, low drag, design specific forgings are machined with close attention given to ring groove quality, tolerances and consistency. All MAHLE Motorsports pistons are dual or