Wiseco V-Twin Piston Kit

Wiseco V-Twin piston kit built from forged high-silicon, low-expansion aluminum for superior strength and heat transfer in V-twin engines. Diamond-turned finish ensures zero size variation and direct compatibility with cast iron, chrome, nikasil, and boron composite cylinder bores.

Features

• Forged high-silicon, low-expansion aluminum construction
• Diamond-turned finish with CNC precision
• Compatible with all cylinder bore types: cast iron, chrome, nikasil, boron composite
• Reduced weight and improved heat transfer
• Available in oversize options for cylinder resleeving

Specifications

• Brand: Wiseco
• Manufacturer Part #: K1682
• Length: 9.6 in
• Width: 5 in
• Height: 3.9 in
• Weight: 2.3 lbs

Fitment

Fits V-twin motorcycles including Harley-Davidson and Indian Motorcycle models.

Frequently Asked Questions

Will this piston work in my nikasil-lined cylinders?

Yes — Wiseco pistons are engineered to work confidently in cast iron, chrome, nikasil, and boron composite cylinder bores without modification.

What makes Wiseco pistons better than stock?

Forged high-silicon aluminum offers superior strength, reduced weight, and improved heat transfer compared to cast stock pistons, extending engine life.

Are oversizes available if my cylinders are worn?

Yes — Wiseco offers a wide range of oversize options. Cast iron cylinders can be bored, and chrome, nikasil, and boron cylinders can be resleeved to accept larger sizes.

Will I need to rejet my carburetor after installing these?

Piston installation alone does not typically require jetting changes. Consult your engine builder if other modifications are planned.