KIBBLEWHITE - 20-21400 - Spring Kit - .610" - Twin Cam

Q: Where can I find installation instructions for this product?

General installation notes are provided on the product page where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat for questions about difficulty, required tools, or whether professional installation is recommended.

Description

The KIBBLEWHITE 20-21400 is a stainless steel conversion kit that replaces OEM titanium intake components with a forged one-piece design, ultra-light titanium retainers, and chrome-silicon springs rated at 175 lb seat and 400 lb open pressure — engineered to extend valvetrain life by up to 4x over factory parts through FEA software and proprietary camshaft analysis, made in the USA.

Features

Stainless steel conversion kit includes only what's needed to convert your head to the long-life stainless steel Black Diamond intake valves

Extend the life of the valvetrain and intake components by as much as 4x over the OEM titanium parts

Includes forged one-piece stainless steel intake valves, wound chrome-silicon heat-treated wire valve springs, ultra-light titanium retainers and hardened steel bases

Components are created using Finite Element Analysis (F.E.A.) software, as well as proprietary camshaft analysis and spring design software

Specifically designed and engineered for each application

Made in the U.S.A.

Specs

Product Name: Spring Kit

Application: Exhaust, Intake

Spring Seat Pressure: 175 lb

Spring Open Pressure: 400 lb

Spring Lift: 0,610"

Spring Lift: 0.610"

Units: Kit

Riding Style: Street

Frequently Asked Questions - KIBBLEWHITE - 20-21400 - Spring Kit - .610" - Twin Cam

General info

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.