Kb Pistons Super Duty 10:1 Flat-Top Piston Set - Harley Twin Cam 96/103 to 110 Standard Bore
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.
Transform your Twin Cam 96/103 into a 110 cubic inch powerhouse with the Kb Pistons Super Duty Piston Set. Engineered for a 10:1 compression ratio and standard bore, these pistons are built for robust performance and a precise fit in your Harley-Davidson.
Why riders pick this
- Designed for Twin Cam 96/103 to 110 cubic inch conversions
- 10:1 compression ratio for increased power
- Standard bore size for direct replacement
- Anodized top ring groove and crown for durability
- Line2Line abradable skirt coating for precise fit
When you're stepping up to a 110 cubic inch Twin Cam build from a 96 or 103, the Kb Pistons Super Duty Piston Set is your go-to. These pistons are designed for a 10:1 compression ratio and standard bore applications, providing a strong foundation for significant power gains. Each piston features advanced coatings and construction to ensure tight running clearances and quiet operation, critical for a high-performance V-twin.
Built for Big-Bore Twin Cam Builds
- Anodized top ring groove and crown for superior durability
- Line2Line abradable skirt coating ensures a self-honing, precise fit
- Premium Hastings ring package for optimal sealing and long service life
- Forced wrist pin oiling for enhanced lubrication and reliability
- Flat-top 1.2cc design with 1.083" compression height
Maximize Your Stroker Build
These Super Duty pistons are specifically designed for big-bore Twin Cam 96/103 to 110cc conversions, offering a significant improvement in strength and efficiency. They come as a complete pair, including all rings, wrist pins, and locks, making installation straightforward. Pair them with a performance cam and a dyno tune to truly uncork the power in your Harley-Davidson Touring, ensuring it performs as aggressively as it looks.
Specifications
- Brand: KB Pistons
- Manufacturer Part #: KB661LCA.STD
- UPC: 800745243423
- Application: Twin Cam 96/103 to 110cc big-bore
- Compression Ratio: 10:1
- Top Design: Flat-top, 1.2cc
- Compression Height: 1.083 in
- Weight: 2.5 lbs (pair)
- Country of Origin: Mexico
Common questions
What compression ratio are these pistons designed for?
These Kb Pistons Super Duty pistons are engineered for a 10:1 compression ratio in Twin Cam 96/103 to 110 cubic inch engine builds.
Are these pistons a standard bore size?
Yes, this piston set is designed for standard bore Twin Cam 96/103 to 110 cubic inch applications, ideal for big-bore conversions.
What is included with this piston set?
This set includes a pair of pistons, along with all necessary rings, wrist pins, and locks for a complete 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 | 824-01815 |
| WEIGHT | 2.5 lb |
| 10 | 1 Compression |
