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WISECO V-Twin Piston Kit K1641 is a forged piston solution designed for performance and recreational applications. WISECO pistons are forged from high-silicon, low-expansion aluminum to provide superior strength, reduced weight, improved heat transfer, and extended service life.
The piston features a diamond-turned finish produced on CNC computer-controlled turning centers for a consistent finish and size. WISECO states that its pistons can be installed in cylinder bores made from cast iron, chrome, Nikasil, and boron composite materials.
WISECO offers oversize piston options to help extend the service life of cast-iron-lined cylinders. Replacement cylinder sleeves also allow chrome, Nikasil, and boron composite cylinders to be resleeved for use with WISECO oversize pistons. Manufactured in WISECO’s computerized facility, this piston kit reflects the company’s focus on supplying forged pistons for both high-performance racers and recreational enthusiasts.
Features:
- Forged Construction: Made from high-silicon, low-expansion aluminum for strength, reduced weight, improved heat transfer, and longer life.
- Diamond-Turned Finish: CNC computer-controlled turning centers provide a consistent finish and size.
- Cylinder Bore Compatibility: WISECO states that the pistons can be installed in cast iron, chrome, Nikasil, and boron composite cylinder bores.
- Oversize Applications: WISECO oversize pistons can increase the service life of cast-iron-lined cylinders.
- Resleeving Support: Chrome, Nikasil, and boron composite cylinders can be resleeved to accept WISECO oversize pistons.
- Performance Manufacturing: Produced in WISECO’s computerized manufacturing facility for high-performance racing and recreational applications.

