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Cylinder Head Porting, Antique and Hi-Performance American Motorcycles

Lee’s Speed Shop EXCLUSIVES

Though here at Lee’s Speed Shop we have access to all of the major parts suppliers, there are a few items that you will not be able to find anywhere else!  At the present time we have two versions of our beehive valve spring kit for mild performance cams in Evo and Twin Cam engines.

We also continue to expand our line of Knucklehead performance parts.  Recently we added 2.060” diameter thin stem intake valves to go with our 5/16” bore Knuckle guides.  One other item for Knuckles that you won’t find anywhere else, are valve spring shims of the correct dimensions.

One thing we need to point out for you Ironhead Sportster fans is that the same 2.060 valve we sell for Knuckles may be just what you were looking for to get more air into your extreme performance XL.  That’s right, with it’s 5/16 stem diameter and an overall length very close to that of a Sportster, odds are your hot rod XL could benefit from a pair of these.

Click on the links to your left for details.

LSS Knuck valve 016
LSS 140 C
knuck shim 6pack 003