WISECO SKU: K1657

Wiseco V-Twin Forged Aluminum Piston Kit - Harley & Indian V-Twin

$447.95
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About Wiseco

Wiseco has forged pistons in Mentor, Ohio since 1941, supplying everything from factory race teams to big-bore street builds. Forged construction is what lets a V-twin survive higher compression and more cylinder pressure than the stock cast piston was designed for.

Elevate your V-twin engine's performance and reliability with this Wiseco Forged Piston Kit. Crafted from high-silicon, low-expansion aluminum, these pistons are designed to offer exceptional strength and reduced weight over stock components. This kit provides a crucial upgrade for any V-twin seeking enhanced durability and power.

Why riders pick this

  • Forged high-silicon, low-expansion aluminum
  • CNC diamond-turned for ultimate precision
  • Works with all common cylinder bore types
  • Reduces engine weight and improves heat transfer
  • Engineered for superior strength and durability

When building a V-twin that demands more, the quality of your pistons is paramount. Wiseco's commitment to precision engineering ensures that these forged pistons deliver consistent performance and extended engine life. Their robust construction is ideal for both spirited street riding and more demanding applications.

Precision Engineering for Power

  • Forged high-silicon, low-expansion aluminum for maximum strength and resilience
  • Diamond-turned CNC finish ensures zero size variation and optimal cylinder sealing
  • Compatible with all major cylinder bore types: cast iron, chrome, nikasil, and boron composite
  • Designed to reduce reciprocating weight and improve thermal efficiency

Upgrade Your Engine's Core

These Wiseco pistons are more than just replacement parts; they are a performance upgrade. By improving heat transfer and reducing weight, they contribute to a cooler-running and more responsive engine. For optimal results, consider professional installation and a custom dyno tune to match your engine's specific needs and modifications.

Specifications

  • Brand: Wiseco
  • Manufacturer Part #: K1657
  • Weight: 2.6275 lbs

Common questions

What benefits do these pistons offer over my stock pistons?

Wiseco forged pistons provide superior strength, reduced weight, and improved heat transfer compared to many factory cast pistons, leading to better durability and performance.

Will this piston kit require any special cylinder preparation?

While these pistons are compatible with various bore types, always have your cylinders inspected by a qualified machinist. They can advise on any necessary boring, honing, or re-sleeving for proper fitment.

Are these pistons designed for a specific compression ratio?

This particular Wiseco V-Twin Piston Kit is a general performance upgrade. For specific compression ratios, please refer to other product listings or consult with our team to find the exact kit for your build goals.

Ordering from Vtwinbikers

  • Brand new, sourced through authorized US distribution — never used, never grey-market.
  • Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
  • Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
BRANDWiseco
TYPEPiston kits & Components
SKUK1657
WEIGHT2.63 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.5
2 RATINGS
5★ 1
4★ 1
3★ 0
2★ 0
1★ 0
✓ VERIFIED
Aug 11, 2020

worked great .a little pricey compared to other brands

— Anonymous
✓ VERIFIED
Jan 16, 2020

I THINK WISECO IS A VERY GOOD PRODUCT. THE ITEM DOESN'T FIT WHAT IT CLAIMS TO FIT, RETURNED

— Anonymous