KIBBLEWHITE Valve Guide 20-20690

If you're rebuilding a high-performance engine or restoring a classic, valve guide quality directly impacts cylinder head longevity and flow efficiency. The KIBBLEWHITE 20-20690 delivers precision machining and proven durability, engineered to handle both modern no-lead fuels and aggressive valve-stem materials without compromise. Built to exacting tolerances and manufactured in the U.S.A., this guide ensures maximum bearing service life while minimizing port obstruction—critical for engines demanding reliability and flow.

• C630 precision-machined material
• No-lead fuel compatible
• Accepts any valve-stem type
• Tapered nose design
• Optimized flow characteristics
• 2.02" overall length
• .560" top diameter
• 2.40" OEM length
• OEM-style top hat compatible
• Standard .420" seal machined
• Accepts OEM lower collar
• Intake or exhaust capable
• Chromed valve stem compatible
• Made in U.S.A.