1.c Norton SOHC Head and Barrel

- Valve collets to fit 5/16" diameter valves (as shown above), as fitted to late SOHC and early DOHC Manx Nortons - collets come as a matched pair, state which diameter required

These are heavyweight UK manufactured hairpin valve spring tongues, an essential for fitting hairpin valve springs to both SOHC and DOHC Norton singles fitted with hairpin valve spring heads.  These are handmade by a UK blacksmith to the original Norton pattern

This item is for a spare spring - of the type that were fitted into the distinctive 'Clack Valve' breathers in 1920's OHV and Walter Moore CS1 breathers - an original dismantled clack valve (shown in photo) providing the spring pattern.  We will shortly be manufacturing the complete breather/clack valve unit.  See listing for more information.  Price is per spring

High quality (UK manufactured) coil valve springs to fit the first Norton OHV models manufactured 1924 - circa 1929, and also the first Walter Moore CS1 models 1927 - circa 1928.  These models identifiable by having a smaller and more deeply conical type top spring cup than the type that followed in 1929.  See detail listing for more information.  Price is for a set of 4 springs (i.e. enough for one engine)

This item is for a pair of the distinctive 'conical' shaped valve spring cups, of the type that were fitted on OHV and Walter Moore CS1 Norton engines through from approximately 1928 up to 1931.  CNC machined from an original pattern, including radial holes - these are designed to fit the early spring type (which we can also supply).  Sold as matching top and bottom cup - see listing for more information  

High quality (UK manufactured) coil valve springs to fit 1920's OHV models up to 1933, early (Walter Moore) type CS1 models and the first Arthur Carrol SOHC CS1 engines up to 1932/33 - see detail listing for more information and if your machine requires this type of spring.  Price is for a set of 4 springs (i.e. enough for one engine)

High quality (UK manufactured) coil valve springs to fit the late 1920's - 1936/7 Norton CS1 and OHV single cylinder models (longer length than later coil springs -see detail listing for more information.  Price is for a set of 4 springs (i.e. enough for one engine)

High quality (UK manufactured) coil valve springs to fit both OHV and CS1 (i.e. non hairpin SOHC) models from 1933 to 1947 single cylinder models (longer length than later coil springs -see detail listing for more information.  Price is for a set of 4 springs (i.e. enough for one engine)