KPMI .600 Lift Valve Spring Kit - Harley Twin Cam & EVO Sportster
About KPMI
Kibblewhite Precision Machining supplies valves, valve springs, guides and complete top-end kits used by professional V-twin engine builders. Its black diamond valves and spring kits are a standard specification on high-lift cam builds.
Upgrade your Harley Twin Cam or EVO Sportster with the KPMI .600 Lift Valve Spring Kit. This kit is specifically designed to support high-lift camshafts, providing the essential valvetrain stability needed for performance engines. Ensure precise valve control and prevent valve float when pushing your V-twin hard.
Why riders pick this
- Designed for .600 lift Twin Cam and EVO Sportster cams
- Premium Kobe Super-Clean Chrome Silicon wire
- Heat-treated and stress-relieved construction
- Shot-peened for superior fatigue resistance
- Optimized for cam harmonics and operating RPM
When you're running a .600 lift camshaft in your Twin Cam or EVO Sportster, reliable valve control is non-negotiable. The KPMI .600 Lift Valve Spring Kit is engineered to deliver exactly that. Wound from premium Kobe Super-Clean Chrome Silicon wire, these springs are heat-treated, stress-relieved, and shot-peened to ensure maximum durability and fatigue resistance. They are precisely matched to your cam profile, allowing your engine to perform consistently at higher RPMs.
Robust Valvetrain Control
- Constructed from premium Kobe Super-Clean Chrome Silicon wire
- Heat-treated and stress-relieved for long-lasting performance
- Shot-peened finish to significantly resist fatigue
- Engineered for precise .600 lift cam applications
Performance for Twin Cam and Sportster
This versatile valve spring kit is a critical upgrade for both Twin Cam and EVO Sportster engines running .600 lift cams. It provides the necessary spring pressure and coil bind clearance to safely operate aggressive camshaft profiles, preventing valve float and potential engine damage. Whether you're building a high-performance bagger or a potent Sportster, these KPMI springs are a fundamental component for reliable power delivery.
Specifications
- Brand: KPMI
- Manufacturer Part #: 20-20360
- Lift Rating: .600 inch
- Length: 6 in
- Width: 8 in
- Height: 2.25 in
- Weight: 1.35 lbs
Common questions
Will these springs work with my .600 lift cam?
Yes, this kit is specifically engineered for .600 lift applications on both Twin Cam and EVO Sportster engines. Always verify your cam's exact lift before ordering.
Do I need new springs if I'm upgrading my cam?
If you are upgrading to a .600 lift cam from a milder profile, new springs matched to that lift are strongly recommended. This prevents valve float, ensures proper valve control, and protects against valve damage.
What material are these springs made from?
These springs are made from premium Kobe Super-Clean Chrome Silicon wire, known for its high strength, durability, and excellent fatigue resistance in demanding engine environments.
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 | KPMI |
| TYPE | Engine |
| SKU | 191-27014T |
| WEIGHT | 1.35 lb |
