KIBBLEWHITE Exhaust Valve Guide 20-21030M

Valve guides are critical to engine longevity and flow efficiency—worn guides cause oil consumption, loss of compression, and poor combustion. The KIBBLEWHITE 20-21030M is precision-machined from C630 material to deliver reliable performance across high-heat cycles while accommodating both leaded and no-lead fuel systems. Whether you're building a street engine or a dedicated race platform, this guide's tapered nose design maximizes port flow and minimizes obstruction, giving you the durability and efficiency your engine demands.

• C630 precision-machined material
• Compatible no-lead fuel
• Accepts any valve-stem material
• 2.02" overall length
• .560" top diameter
• 2.40" OEM length
• Tapered nose design
• Optimized flow characteristics
• Accepts OEM top-hat seals
• Standard .420" seal compatible
• Works intake or exhaust
• OEM-style collar compatible
• U.S.A. manufactured
• Chromed valve stem ready