KB Pistons Forged Alloy 9.5:1 .010" Oversized Piston Kit - Harley Twin Cam 96 to 103ci
About Kb Pistons
KB Performance Pistons builds hypereutectic and forged pistons for American V-twin engines, and is a long-standing choice for big-bore and stock-replacement rebuilds where budget and durability both matter.
Upgrade your Twin Cam 96 or 103ci engine with this KB Pistons forged alloy piston kit, featuring a 9.5:1 compression ratio and a .010 inch oversized bore. These pistons are built for riders who demand uncompromising strength and performance from their V-twin. Engineered to handle high stress, they provide a reliable foundation for any serious engine build.
Why riders pick this
- Upgrade Twin Cam 96 to 103ci with 9.5:1 compression
- Forged 4032 alloy with 11% silicon for strength
- Superior crack resistance, perfect for power adders
- Coated skirts reduce friction and extend life
- Complete kit with rings, wrist pins, and wrist pin locks
- Ideal for demanding street or race applications
For riders looking to get the most out of their Twin Cam 96 or 103ci engine, a robust piston kit is essential. This KB Pistons forged alloy kit provides a 9.5:1 compression ratio and a .010 inch oversized bore, offering a performance advantage. Crafted from 4032 forged alloy with an 11% silicon content, these pistons are specifically engineered for superior crack resistance under detonation and pre-ignition, making them ideal for high-performance street applications and race builds, especially with power adders. They are built to endure the rigors of aggressive riding and increased engine output.
Engineered for Maximum Durability
- Constructed from 4032 forged alloy with 11% silicon for extreme durability
- Superior crack resistance against detonation and pre-ignition
- Coated skirts reduce friction and enhance piston longevity for Twin Cam and Sportster
- Includes all rings, wrist pins, and wrist pin locks for a complete assembly
- Designed for Twin Cam 96 to 103ci engines with 9.5:1 compression
The Foundation for Serious Power
These KB Pistons are more than just an upgrade; they are a critical component for any Twin Cam owner looking to extract maximum power and ensure long-term reliability. The kit includes all necessary rings, wrist pins, and wrist pin locks, providing a comprehensive solution for your engine build. Whether you're optimizing for a high-performance cam, cylinder head work, or preparing for forced induction, these pistons offer the internal strength and resilience required to support your most ambitious power goals.
Specifications
- Brand: KB Pistons
- Manufacturer Part #: KB907C.010
- UPC: 800745153166
- Engine Application: Twin Cam 96 to 103 cubic inch
- Compression Ratio: 9.5:1
- Oversizing: .010 inch
- Quantity: Pair (2 pistons)
- Weight: 2.6 lbs
- Country of Origin: Mexico
Common questions
Will cylinder boring be necessary for these pistons?
Yes, these pistons are .010 inch oversized and require your Twin Cam 96 or 103ci cylinders to be bored to match by a qualified machine shop for proper fitment.
Are these pistons suitable for engines using forced induction or nitrous?
Absolutely. The 4032 forged alloy with 11% silicon content is specifically chosen for its superior crack resistance under detonation, making these pistons an excellent choice for supercharged, turbocharged, or nitrous-fed engines.
What is included with this piston kit?
This kit comes complete with a pair of forged pistons, a full set of piston rings, wrist pins, and wrist pin locks, providing everything needed for piston installation.
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.
| BRAND | Kb Pistons |
| TYPE | Piston kits & Components |
| SKU | 824-01524 |
| WEIGHT | 2.6 lb |
