Kibblewhite.010 Oversize Manganese Exhaust Valve Guide for Harley-Davidson FL

The.010 oversize manganese exhaust valve guide for Harley-Davidson FL engines is designed for precise reaming and a secure, heat‑efficient fit. Its undersize bores are easily reamed to your exact final size, while the O-ringed flange design ensures a durable, secure installation.

• Oversize bore: Easily reamed for a custom fit
• O-ringed flange design: Ensures secure installation and durability
• Excellent heat transfer: Optimizes engine cooling and performance
• Good lubricity: Facilitates smooth valve movement and reduces wear
• Made in the USA: Quality craftsmanship
• Material: Manganese (manganese-based valve guide)
• Part number: 20-2039M
• Fitment: Harley Davidson FL models from 1948 to 1957

Designed for high‑performance applications and engine rebuilds, this valve guide helps maintain peak operation and extend engine life in classic Harley FLs. To complete your valve job, consider shoulderless valve guide driver tool handle (SKU 16-0322) and the valve guide driver tool set (SKU 16-0132) for proper installation and precise reaming.

.010 Oversize exhaust valve guide with undersize bores is easily reamed. Guide features O-ringed flange design good durability excellent heat transfer and good lubricity.

Upgrade your Harley Davidson FL engine with the Kibblewhite manganese.010 oversize exhaust valve guide, part number 20-2039M. Designed with precision and durability in mind, this guide features an O-ringed flange that ensures a secure fit and excellent heat transfer properties, making it ideal for high-performance applications. Its oversize bore allows for easy reaming, providing a customizable fit that maintains optimal engine operation. Constructed in the USA, this valve guide is engineered to withstand high temperatures and resist wear, contributing to longer engine life and improved efficiency.
The guide's good lubricity ensures smooth valve movement, reducing friction and wear over time. Its robust design makes it a reliable replacement part for Harley Davidson FL models from 1948 through 1957, ensuring compatibility and ease of installation. Whether you're rebuilding or enhancing your engine, this part offers the quality and performance you expect from Kibblewhite.
To complete your valve job, consider accessory items such as the shoulderless valve guide driver tool handle (SKU 16-0322) and the valve guide driver tool set (SKU 16-0132), which are recommended for proper installation and reaming. Trust this high-quality valve guide to help maintain peak engine performance and extend the lifespan of your Harley Davidson motorcycle.

Features:

• Oversize bore: Easily reamed for a custom fit

• O-ringed flange design: Ensures secure installation and durability

• Excellent heat transfer: Optimizes engine cooling and performance

• Good lubricity: Facilitates smooth valve movement and reduces wear

• Made in the USA: Quality craftsmanship and reliable performance

• Fits: Harley Davidson FL models from 1948 to 1957

Fitment:
Harley Davidson FL 1948
Harley Davidson FL 1949
Harley Davidson FL 1950
Harley Davidson FL 1951
Harley Davidson FL 1952
Harley Davidson FL 1953
Harley Davidson FL 1954
Harley Davidson FL 1955
Harley Davidson FL 1956
Harley Davidson FL 1957
Harley Davidson FL 1958
Harley Davidson FL 1959
Harley Davidson FL 1960
Harley Davidson FL 1961
Harley Davidson FL 1962
Harley Davidson FL 1963
Harley Davidson FL 1964
Harley Davidson FL 1965
Harley Davidson FL 1966
Harley Davidson FL 1967
Harley Davidson FL 1968
Harley Davidson FL 1969
Harley Davidson FL 1970
Harley Davidson FL 1971
Harley Davidson FL 1972
Harley Davidson FL 1973
Harley Davidson FL 1974
Harley Davidson FL 1975
Harley Davidson FL 1976
Harley Davidson FL 1977
Harley Davidson FL 1978
Harley Davidson FX 1971
Harley Davidson FX 1972
Harley Davidson FX 1973
Harley Davidson FX 1974
Harley Davidson FX 1975
Harley Davidson FX 1976
Harley Davidson FX 1977
Harley Davidson FX 1978