Wiseco K1683 V-Twin Piston Kit HD 883 Evo Big Bore to 1207cc

The Wiseco K1683 is a forged piston kit designed for Harley-Davidson 883 Evo big bore conversions, expanding displacement up to 1207cc. Wiseco's reputation for precision forged motorcycle pistons makes this an ideal upgrade for riders seeking increased displacement and long-term engine durability.

Key Features:

• High-Silicon, Low-Expansion Forged Aluminum — Provides superior tensile strength, reduced reciprocating weight, improved heat transfer, and extended service life compared to cast pistons.
• Diamond-Turned CNC Finish — Precision-machined on computer-controlled turning centers for a consistent, accurate bore fit with zero size variation between pistons.
• Universal Cylinder Compatibility — Engineered for use in cast iron, chrome, Nikasil, and boron composite cylinder bores with confidence.
• Big Bore Oversize Support — Wiseco's oversize piston range helps extend the life of cast iron lined cylinders. Chrome, Nikasil, and boron composite cylinders can be re-sleeved to accept oversize Wiseco pistons.
• Part Numbers Included: Kit references piston set 3507X and wrist pin 4719P1.
• State-of-the-Art Manufacturing — Produced in Wiseco's dedicated CNC manufacturing facility, serving both high-performance racers and recreational powersports enthusiasts.

The Wiseco K1683 piston kit is built to OEM-exceeding tolerances, delivering the reliability and performance Wiseco is known for in the V-Twin and Harley-Davidson aftermarket community.