• Allow a tighter fit, longer piston and ring life
• Diamond-machined pistons are held to plus or minus on gram weight and less than .005″ tolerances between pistons
• Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings
• Replacement piston rings and pin lock rings available separately
• These pistons can be installed tighter than other pistons, resulting in less piston rock and better ring seal.
• Special attention is required to the top ring end gap, refer to instructions for correct piston and ring installation



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