KB Performance pistons for Harley and Indian motorcycles are offered in Hypereutectic 390 alloy and Forged 4032 low expansion alloy. Our 4032 alloy is preferred for high performance / high compression applications. We offer offset wrist pins for a quiet engine and most have coated skirts. The low expansion alloy allows for a tighter piston to wall running clearance.
- V-Twin Harleys
- EVO
- Knuckle
- Shovelhead
- Sportster
- Indian Power Plus