Harley Shelf Parts

CP Pistons offers over 65 shelf part pistons featuring the Evolution, Twin Cam, Sportster, Sportster Conversion, Shovelhead and VRod. Each of these pistons was designed through extensive research and development with the cooperation of some of the biggest names in motorsports. These pistons are available in standard size or big bore kits and are compatible with higher lift cams and oversize valves. All of our pistons represent the highest quality and are engineered for maximum power.

Shelf part features include
Double forced pin oilers Fully CNC machined
Accumulator Grooves Pick-lock grooves
Anti-Detonation Grooves High performance rings


Harley Custom Parts

CP offers a wide variety of forgings made specifically for you application. Each piston is designed using sophisticated 3-D modeling software and manufactured with advanced 5-axis techniques making your piston the lightest and strongest piston on the market. See the custom piston section for more details.

Cometic gasket kits are available for all shelf parts. See gasket chapter under catalog section for more information. Gasket kits are listed in the catalog to correspond with your application.