cam lift

dero · Feb 11, 2010

4s cam specs

I am having a new motor built,with larger norvil inlets, and the engineer is having some trouble getting the valve lift right
He is a very experienced mc engineer but little experience with nortons
Does anyone know the lift at the valves for a 4s cam

L.A.B. · Feb 11, 2010

http://www.nortonownersclub.org/support ... /camshafts

dero · Feb 12, 2010

Thank you

cash · Feb 13, 2010

What's the problem, coil binding, valves clashing? Is your motor a 750?

Cash

dero · Feb 15, 2010

74 850
the engineer thought the valve stem was too short, but we may have it, machine the collet groove.

cam lift

dero

L.A.B.

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dero

cash

dero