Kb Pistons Forged Alloy Piston 9.25:1 .010 - Harley Twin Cam 88 to 95ci
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.
Take your Twin Cam 88 to 95ci engine to the next level with KB Pistons Forged Alloy Pistons. Engineered for demanding street or race applications, these pistons offer a 9.25:1 compression ratio and a .010 oversized bore.
Why riders pick this
- 4032 forged alloy with 11% silicon
- Superior crack resistance under detonation
- Coated skirts for enhanced durability
- Ideal for power adders like NOS or boost
- Includes rings, wrist pins, and locks
Crafted from a robust 4032 forged alloy with an 11% silicon content, these pistons provide superior crack resistance, even under conditions of detonation or pre-ignition. This makes them an excellent choice for riders pushing the limits with power adders like nitrous or boost, ensuring reliability when it matters most.
Built for Extreme Performance
- Constructed from 4032 forged alloy with 11% silicon
- Exceptional crack resistance against detonation and pre-ignition
- Coated skirts for reduced friction and increased longevity
- Designed for high-stress street and race applications
- Includes rings, wrist pins, and locks for a complete installation
Ready for Power Adders and High Demands
These KB Forged Alloy Pistons are not just about raw strength; they're about delivering consistent performance under the most challenging conditions. The included rings, wrist pins, and locks ensure a comprehensive upgrade, setting your Twin Cam up for success whether you're hitting the drag strip or carving canyons with added power. Confirm proper bore and compression requirements for your specific build.
Specifications
- Brand: KB Pistons
- Manufacturer Part #: KB904C.010
- UPC: 800745152404
- Compression Ratio: 9.25:1
- Bore Size: .010 oversized
- Engine Displacement: Twin Cam 88 to 95ci
- Length: 5.9 in
- Width: 5.8 in
- Height: 5.7 in
- Weight: 2.5 lbs
- Country of Origin: Mexico
Common questions
What comes included with the pistons?
Each pair of pistons comes complete with rings, wrist pins, and wrist pin locks for a comprehensive installation.
Are these pistons suitable for engines with power adders?
Yes, these forged alloy pistons are specifically designed for street or race applications utilizing power adders such as nitrous or boost, offering superior crack resistance.
Do these pistons require any special machining?
These pistons are .010 oversized. You will need to ensure your cylinders are bored and honed to the correct specification for a precise fit. Professional installation is highly recommended.
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 | 824-01502 |
| WEIGHT | 2.5 lb |
| 9.25 | 1 Compression |
