KIBBLEWHITE Intake Valve Guide - M8 20-21020M

If you're rebuilding a high-revving engine or restoring a classic with modern reliability in mind, valve guides are non-negotiable—they control oil consumption, maintain proper valve clearance, and directly impact port flow efficiency. KIBBLEWHITE's precision-machined guides are engineered to handle sustained performance while maintaining OEM compatibility, giving you the durability of a purpose-built component without sacrificing ease of installation. Whether you're running unleaded fuel or pushing boost, these guides deliver the consistency that separates a well-sorted engine from one that's just spinning.

• Material: C630 precision-machined
• Compatibility: No-lead fuel compatible
• Valve stem: Any material accepted
• Design: Tapered nose, optimized flow
• Overall length: 2.40"
• Top diameter: .560"
• Guide length: 2.02"
• Seal type: OEM top hat compatible
• Seal size: Standard .420" machined
• Application: Intake or exhaust
• Collar: OEM lower collar compatible
• MPN: 20-21020M
• Origin: Made in U.S.A.