500cc SOHC 11/32" Stem Inlet Valves (Sized - 4.590" Length, 1.825" Head)

- High quality inlet valves manufactured by G & S Valves - This valve is in a larger head size - 1.825". It was sometimes fitted to later International's and SOHC Manx's (but can also be fitted to earlier engines if req'd) - standard Model 30\40 stem diameter : 11/32" - Stem length: 4.590".

These valves already have the collet groove machined and are ready to fit. Note: Norton cammy valves were made in a variety of lengths over the years, however, this length - 4.590" is one of the most commonly used. If you have an original then measure that. If you are unsure please email me.