Description
Valve guides are critical to your engine’s longevity and performance—they maintain proper valve alignment, reduce oil consumption, and prevent wear that can lead to catastrophic engine failure. KIBBLEWHITE’s Ampco-45 construction delivers superior heat dissipation and wear resistance, keeping your valvetrain stable under sustained high RPM operation. Whether you’re rebuilding a street engine or preparing a race motor, quality valve guides are non-negotiable for reliability.
- Material: Ampco-45 bronze
- Copper content: 80%
- Nickel content: 5%
- Heat conductivity: Excellent
- Wear resistance: High
- Position: Intake
- Size: Standard
- Origin: Made in USA
- MPN: 40-41620
- Installation: Professional fabrication recommended






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