That's Not a Cam; This is a Cam!

Thought you might enjoy seeing a somewhat rare cam. This is a Leineweber #5 Knucklehead cam. It is .540" lift with the Knuckle's 1:1 rocker arm ratio. The description for this cam is as follows: Radical racing cam. Designed for fuel, alcohol, or gasoline. Major engine modifications needed to fit this cam. Expert engine builder a must.

Is that cool or what? The lobes at 8 and 12 o'clock are the intakes, and the milder exhaust lobe is the one at 3 o'clock. Jim Leineweber only lists his Knuck cam specs at .020" lift. For this cam the duration is 318 degrees on the intake and 298 degrees for the exhaust. The picture doesn't do it justice as to just how radical this cam looks!

Twenty + years ago a local drag racer from the '60s and 70's, the late Doug Gall, showed me a cam which Jim Leineweber had ground for him. He told me it was one of Jim's first. It was a stock cam that had been welded up and reground. As I recall, it had much this same shape to the lobes.

The best part is you can still get one of these for your own nitro burning Knucklehead at leinewebercams.com (or contact me).