KB Pistons Forged Alloy 9.5:1 Standard Bore 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.
Elevate the performance of your Twin Cam 96 or 103ci engine with this KB Pistons forged alloy piston kit. Designed with a 9.5:1 compression ratio and standard bore size, these pistons provide a robust foundation for increased power and reliability. Built from durable 4032 forged alloy, they are ready for the demands of high-performance riding.
Why riders pick this
- Upgrade Twin Cam 96 to 103ci with 9.5:1 compression
- Robust 4032 forged alloy with 11% silicon
- Superior crack resistance for demanding use
- Coated skirts reduce friction and wear
- Complete kit with rings, wrist pins, and wrist pin locks
- Optimized for street or race applications
When you're looking to upgrade your Twin Cam 96 or 103ci engine, a strong set of pistons is non-negotiable. This KB Pistons forged alloy piston kit offers a 9.5:1 compression ratio in a standard bore size, making it a direct fit for compatible cylinders. Crafted from 4032 forged alloy with an 11% silicon content, these pistons are engineered for superior crack resistance, especially under detonation, which is critical for engines running aggressive tunes or power adders. Whether you're building a performance street machine or a race bike, these pistons provide the durability you need.
Built for Reliable Power
- Constructed from 4032 forged alloy with 11% silicon content
- Superior crack resistance against detonation and pre-ignition
- Coated skirts reduce friction and improve longevity on Twin Cam applications
- 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 of a Stronger Engine
These KB Pistons are more than just replacement parts; they are a performance enhancement designed to bolster your Twin Cam's internal strength. The included rings, wrist pins, and wrist pin locks ensure you have all the necessary components for a comprehensive piston installation. Ideal for riders seeking increased reliability and the ability to handle more aggressive engine setups, these pistons are a smart investment for any serious V-twin builder looking to get the most out of their 96 or 103ci motor.
Specifications
- Brand: KB Pistons
- Manufacturer Part #: KB907C.STD
- UPC: 800745153128
- Compression Ratio: 9.5:1
- Displacement Range: Twin Cam 96 to 103ci
- Weight per Pair: 2.5 lbs
- Country of Origin: Mexico
Common questions
Are these pistons a direct replacement for my Twin Cam 96/103 engine?
Yes, these are standard bore pistons designed for Twin Cam 96 to 103ci engines with a 9.5:1 compression ratio, making them a suitable replacement or upgrade without requiring cylinder boring for standard applications.
Can these pistons handle forced induction or nitrous?
Absolutely. The 4032 forged alloy with 11% silicon content provides excellent crack resistance, making them well-suited for engines running power adders like superchargers, turbos, or nitrous oxide.
What is included in this piston kit?
This kit includes a pair of forged alloy pistons, all necessary piston rings, wrist pins, and wrist pin locks, providing a complete solution for your piston assembly.
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 | 824-01522 |
| WEIGHT | 2.5 lb |
