Wiseco V-Twin Piston Kit - 1340 EVO BIG Twin 10:1 Comp — Harley-Davidson Electra Glide Classic, Softail Custom, Softail Heritage Classic (1984-1999)

Wiseco V-Twin piston kit for 1340cc EVO Big Twin engines at 10:1 compression ratio. Forged from high silicon, low expansion aluminum for superior strength, reduced weight, and extended engine life across all cylinder bore types.

Features

• Forged high silicon, low expansion aluminum construction
• Diamond turned finish with CNC precision
• Compatible with cast iron, chrome, nikasil, and boron composite cylinders
• Available in oversize options for cylinder resleeving
• State-of-the-art computerized manufacturing

Specifications

• Brand: Wiseco
• Manufacturer Part #: K1667
• Compression Ratio: 10:1
• Engine Type: 1340cc EVO Big Twin
• Length: 9.6 in
• Width: 5 in
• Height: 4 in
• Weight: 2.6 lbs

Fitment

Fits V-twin motorcycles with 1340cc EVO Big Twin engines.

Frequently Asked Questions

Can I use this piston in a chrome or nikasil cylinder?

Yes. Wiseco pistons are designed to work confidently in cast iron, chrome, nikasil, and boron composite cylinders.

Are oversize options available if my cylinders need resleeving?

Yes. Wiseco offers a wide range of oversize pistons, and cylinders can be resleeved to accept larger sizes.

What makes Wiseco pistons different from stock?

They're forged from high silicon aluminum for superior strength and reduced weight, with a precision diamond turned finish and improved heat transfer for longer engine life.

Will these fit my stock bore cylinders?

Yes — this kit is designed as a direct replacement for 1340cc EVO Big Twin engines at 10:1 compression.