Kb Pistons Hypereutectic Cast Piston Standard - Harley Shovelhead 88-89ci
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.
Optimize your Shovelhead 88-89 cubic inch engine with the Kb Pistons Hypereutectic Cast Piston. Engineered for superior thermal management and a precise fit, these pistons are an excellent choice for a reliable V-twin powerplant.
Why riders pick this
- 16% silicon hypereutectic alloy construction
- Low thermal expansion for tight clearances
- Optimal ring seal and reduced wear
- Quiet engine operation
- Designed for stock to mild builds on pump fuel
These Kb Pistons Hypereutectic Cast Pistons are designed for Shovelhead 88-89 cubic inch engines in standard bore size. Featuring a robust 16% silicon content, the hypereutectic alloy delivers exceptional low thermal expansion. This characteristic is crucial for maintaining tight piston-to-cylinder clearance, which translates to optimal ring seal, reduced wear, and quieter engine operation in air-cooled motors. They are ideal for stock and mild compression builds that run efficiently on pump fuel.
Precision Engineering for Shovelhead Reliability
- Hypereutectic 16% silicon alloy for thermal stability
- Low thermal expansion rate ensures tight piston-to-cylinder clearance
- Optimized ring seal for consistent compression
- Reduced engine wear for extended longevity
- Quiet engine operation from precise fitment
The Right Piston for Your Shovelhead
Whether you're performing a standard rebuild or a mild performance upgrade, these Kb Pistons provide the foundation for a strong running Shovelhead 88-89ci engine. The cast construction ensures durability for street use. For optimal performance, ensure your cylinders are within standard specifications. These pistons are a solid choice for Harley Touring, Softail, or Dyna riders looking for dependable power and a smooth ride.
Specifications
- Brand: KB Pistons
- Manufacturer Part #: KB294.STD
- UPC: 800745064073
- Engine: Shovel 88–89 ci
- Size: Standard
- Length: 9.5 in
- Width: 4.8 in
- Height: 4.6 in
- Weight: 2.5 lbs
- Country of Origin: Mexico
Common questions
What compression ratio are these pistons best suited for?
These pistons are best suited for stock to mild compression ratios up to 10.5:1, designed for Shovelhead 88-89ci engines running on pump fuel.
Do these pistons require any special machining?
These are standard-size pistons. If your cylinders are within factory specifications, they typically will not require special machining beyond a standard hone for proper ring seating.
Why choose hypereutectic over forged pistons for my Shovelhead?
Hypereutectic pistons offer excellent thermal stability due to their high silicon content, leading to lower expansion, tighter clearances, and quieter operation, which is beneficial for air-cooled V-twin engines.
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 | 824-01162 |
| WEIGHT | 2.5 lb |
