Kb Pistons Forged Alloy Piston 9.25:1 STD - 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.
Fortify your Twin Cam 88 to 95ci engine with KB Pistons Forged Alloy Pistons, featuring a 9.25:1 compression ratio and standard bore. These pistons are engineered for peak performance and extreme durability.
Why riders pick this
- 4032 forged alloy with 11% silicon
- Superior crack resistance under stress
- Coated skirts for long-lasting performance
- Includes rings, wrist pins, and locks
- Ideal for power adders and race applications
Manufactured from a high-strength 4032 forged alloy with an 11% silicon content, these pistons offer superior crack resistance against detonation and pre-ignition. This makes them an ideal choice for riders pushing their V-twin with power adders like nitrous or boost, ensuring your engine can handle the increased demands of street or race applications.
Unmatched Strength and Reliability
- Constructed from durable 4032 forged alloy with 11% silicon
- Formed in a forging press and fully machined for precision
- Superior crack resistance under detonation or pre-ignition
- Coated skirts on all Twin Cam applications for reduced friction
- Includes rings, wrist pins, and wrist pin locks for a complete kit
Performance-Ready for Any Challenge
Whether you're building a high-horsepower drag bike or a robust street machine, these KB Forged Alloy Pistons provide the foundation you need. The standard bore design simplifies installation for many Twin Cam 88 to 95ci applications, while the included components ensure you have everything required for a professional-grade assembly. Always verify fitment with your specific engine specifications.
Specifications
- Brand: KB Pistons
- Manufacturer Part #: KB904C.STD
- UPC: 800745152367
- Engine: Twin Cam 88 to 95ci
- Compression Ratio: 9.25:1
- Bore: Standard
- Weight: 5.0333 lbs
- Country of Origin: Mexico
Common questions
What is included with these pistons?
The piston pair includes all necessary rings, wrist pins, and wrist pin locks for a complete installation.
Can these pistons be used in a stock engine?
Yes, while designed for performance, these forged pistons can be used in a stock engine. Their strength provides an excellent foundation for future upgrades.
Are these pistons compatible with forced induction?
Absolutely. These forged alloy pistons are built to handle the demands of power adders like nitrous or boost, offering enhanced durability under high-stress conditions.
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 | 824-01500 |
| WEIGHT | 5.03 lb |
| 9.25 | 1 Compression |
