Kibblewhite 40-40320 Valve Guide Set Intake/Exhaust Standard Kawasaki KX450F

The Kibblewhite 40-40320 valve guide set provides precision-engineered replacement valve guides for 2006-2008 Kawasaki KX450F motorcycles. This kit includes both intake and exhaust valve guides manufactured to standard bore specifications.

Key Features:

• Constructed from C630 nickel bronze for superior wear resistance and heat conductivity
• 4-5% nickel content provides exceptional durability in high-temperature environments
• 80% copper composition delivers outstanding thermal management
• Optimized profile design minimizes airflow restriction while maintaining critical wall thickness
• Shortened top portion when necessary to ensure proper valve retainer-to-seal clearance
• Standard bore sizing for direct OEM replacement

Application: 2006-2008 Kawasaki KX450F

Note: Use OEM valve stem seals with these guides.

Kibblewhite Precision Machining, Inc. (KPMI) specializes in high-performance valvetrain components for motorsports applications including motocross, road racing, and drag racing. Their bronze valve guides are designed to handle the extreme demands of racing engines while providing reliable performance and extended service life.