Wiseco Pistons Tracker Piston Kit to Evo Sportster Compression

The Wiseco Tracker Series piston kit is a forged V-twin engine piston kit for Harley-Davidson Evo Sportster engines. It is built for riders who want more displacement and higher compression than stock. This kit is also sold as a Sportster big bore piston kit or an Evo Sportster performance piston set. It gives you a straightforward way to build more power from your Sportster engine.

Key Features:

• Forged construction: Wiseco forges features such as the valve pockets and crown shape into the piston. This avoids machining them out of a blank afterward.
• Compression options: The Tracker line comes in multiple compression ratio and bore options. This lets you match the kit to your build goals.
• Generous valve pockets: The pockets are sized to clear larger valves and higher-lift cams.
• Oil control: Tracker pistons for Sportster, Evo and Twin Cam models are supplied with a high-tension 3mm oil ring set. It helps control oil consumption, which matters on a performance V-twin.
• Big bore capability: You can raise displacement without major crankcase work. Bore the cylinders, install the pistons, and the engine gains compression and displacement.

Wiseco designs and builds each Tracker kit for a specific V-twin engine platform. Select the bore size and compression ratio that suits your cylinders and your performance goals.