KPMI Kibblewhite .600 Lift Valve Spring Kit - Harley Twin Cam 88
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.
Unleash the full potential of your Twin Cam 88 with the KPMI Kibblewhite .600 Lift Valve Spring Kit. Engineered for high-performance applications, these springs provide the necessary control for aggressive cam profiles. They are a critical upgrade for riders pushing their Twin Cam 88 to its limits.
Why riders pick this
- Designed for .600 lift Twin Cam 88 applications
- Premium Kobe Super-Clean Chrome Silicon wire construction
- Heat-treated and stress-relieved for maximum durability
- Shot peened to resist fatigue
- Optimized for cam harmonics and operating RPM
When you're chasing serious power from your Twin Cam 88, controlling valve action at higher RPMs and with increased lift is paramount. This KPMI Kibblewhite valve spring kit is purpose-built for .600 lift camshafts, ensuring your valvetrain remains stable and reliable. Crafted from premium materials and rigorously tested, these springs are designed to withstand the demands of performance riding, preventing valve float and maintaining optimal valve timing.
Engineered for Performance and Durability
- Wound from premium Kobe Super-Clean Chrome Silicon wire for superior strength
- Heat-treated and stress-relieved to enhance resilience and prolong life
- Shot peened for increased fatigue resistance under heavy use
- Precisely engineered to match cam harmonics for smooth operation
Essential for High-Lift Cam Upgrades
Installing a high-lift camshaft without upgrading your valve springs is a recipe for disaster. This KPMI kit provides the proper spring rate and coil bind clearance for .600 lift cams, making it an essential component for any serious Twin Cam 88 build. Pair these with a performance cam and a proper dyno tune to unlock significant torque and horsepower gains, transforming your ride's character.
Specifications
- Brand: KPMI
- Manufacturer Part #: 20-20132
- Length: 4.95 in
- Width: 7.85 in
- Height: 2.55 in
- Weight: 1.52 lbs
Common questions
Will these springs work with my stock Twin Cam 88 cam?
No, these springs are specifically engineered for .600 lift applications. Stock camshafts have different lift specifications and require different spring rates. Confirm your cam's lift before ordering.
Is this a complete kit for both cylinders?
Yes, this kit includes a complete set of valve springs for your Twin Cam 88 engine. Always verify all spring locations with your cam supplier for your specific setup.
Do these springs require any special installation tools?
Installing valve springs typically requires a valve spring compressor tool. We recommend consulting a service manual or professional mechanic for proper installation procedures to ensure correct seat pressure and clearances.
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 | 191-27003S |
| WEIGHT | 1.52 lb |
