Valve Collets to fit all OHV and SV Norton models - i.e. Norton ES2, Model 18, Model 19, Model 50, Model 55, Norton 16H, Big 4 etc. Collets are high quality CNC machined in-house. Sold as a joined pair (i.e. to fit one valve)
Sold as a joined pair (i.e. to fit one valve), meaning they are not fully split in halves - when you are ready to fit them, just split them with a small screwdriver and lightly file the two small joining tabs. Collets are always sold this way, to ensure they are fitted as a matched pair . Two (pairs) required per engine.
Note: We also sell OHV valves and coil spring top/bottom cup plates and springs - all designed to be fitted together to an OHV Norton single cylinder engine - all parts being identical pattern and compatable with originals. However, if fitting the top/bottom valve spring cups to early SOHC engines with coil springs - do not use these collets, as SOHC valves have a different valve stem/collet angle. Instead look for the relevent Inlet/Exhaust SOHC collet, which will be compatable. These collets are only suitable for OHV engines