KIBBLEWHITE - 20-21500 - Spring Kit - .660" - Evolution/Twin Cam
Description
Kibblewhite presents the 20-21500 Spring Kit, a stainless steel conversion kit designed specifically for Evolution/Twin Cam engines. This kit includes everything necessary to convert your head to the long-lasting and durable stainless steel Black Diamond intake valves. By using this kit, you can extend the life of your valvetrain and intake components by up to 4 times compared to the OEM titanium parts. The components of this kit are meticulously crafted using advanced software such as Finite Element Analysis (F.E.A.), proprietary camshaft analysis, and spring design software. The kit consists of forged one-piece stainless steel intake valves, wound chrome-silicon heat-treated wire valve springs, ultra-light titanium retainers, and hardened steel bases. With a spring seat pressure of 178 lb and a spring open pressure of 371 lb, this Spring Kit is ideal for street riding applications. Made in the U.S.A., this high-quality kit is the perfect choice for those seeking superior performance and durability.
Features
Specs
Frequently Asked Questions - KIBBLEWHITE - 20-21500 - Spring Kit - .660" - Evolution/Twin Cam
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
