Kibblewhite Twin Cam Exhaust Valve - 0.2805" - +.005" - 20-20776

The Kibblewhite Fat Stem Valve is engineered to address a common issue in some Twin Cam heads that utilize 7.0mm valves: cracking in the port end of the valve guide boss. This valve provides a reliable solution for restoring optimal valve stem to valve guide clearance.

Description

This Kibblewhite valve features a .005" oversize stem, carefully designed to re-establish the correct valve stem to valve guide clearance in heads that have experienced cracking. Proper installation requires reaming or honing the valve guides to achieve the correct clearance, followed by a valve job to ensure a proper seal. This ensures optimal engine performance and longevity. The oversize portion of the valve stem is strategically designed to not extend into the keeper groove area, allowing for the continued use of OEM valve keepers. Enhance your engine's reliability with Kibblewhite's precision-engineered valve solution, specifically designed for Twin Cam applications requiring a valve with a 0.2805" stem diameter and 1.575" head diameter.

Features & highlights

• Addresses cracking issues in Twin Cam heads with 7.0mm valves.
• Features a .005" oversize stem for restoring proper valve clearance.
• Allows use of OEM valve keepers.
• Ensures proper sealing and optimal engine performance.
• Designed for precise fitment and reliable operation.
• Ideal for professional engine builders and motorcycle enthusiasts.

Technical specifications

• Brand: Kibblewhite
• Vendor Part Number: 20-20776
• Application: Exhaust
• Color/Finish: Black
• Head Diameter: 1.575"
• Length: 4.510"
• Stem Diameter: 0.2805"
• Tulip Angle: 23°

Important to know

Valve guides must be reamed/honed to set correct clearance, and a valve job must be performed to ensure proper sealing. Professional installation is recommended.