Oversize replacement valve guide for 1936 to 1947 E, EL, F, FL Harley Knuckleheads.

Material is cast iron.  Nominal O. D. of guide is .652" (+.008 oversize).  The bore of the guide is .3755"    Reaming and/or honing of the guide will be required to achieve stock valve to guide clearances with most valves.  These guides have been manufactured from the finest material by Kibblewhite Precision Machining (of PM Black Diamond valve fame). Here is what they say:

After chemically separating several samples of cast iron material for analysis and evaluating the test data, we decided to have our own specification of cast iron made exclusively for us. We specify elements such as carbon, silicon, manganese, nickel, chromium, copper and sulfur to produce a highly pearlitic structure with dense fine grains for excellent wear resistance.

As always, these parts are available for inspection and for local pickup (to avoid shipping costs) at Lee's Speed Shop, 8320 Co. Rd. 52, Carver MN

Proudly made in the USA!

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