WOSSNER Piston Kit - 4.375" Stroke - 117 CID - M8 K4084D478-2

Piston Kit - 4.375" Stroke - 117 CID - M8 Crown is anodized to improve resistance to extreme heat, Tested and proven to improve thermal diffusivity by up to 10%, Hardcoat anodize treatment enhances the piston's abilities to manage heat and wear, Ring groove wear is improved with anodize treatment ability to handle sliding wear as compared to non-treated surfaces, Kit includes piston, piston rings, piston pin and retaining clips, Valve Pocket Specifications:, Intake Diameter: 1.780", Intake Depth: 0.200", Intake Angle: 27.000?, Exhaust Diameter: 1.780", Exhaust Depth: 0.200", Exhaust Angle: 27.000?