Piston assembly, Norton 16H 1937-1954, +0.20

Piston assembly (complete with piston, rings, gudgeon, circlips) to suit Norton 16H SV 1939 to 1954 79mm +0.020inch. NOS British. Actually a BSA B44 piston that has a smaller gudgeon so requires the supplied bush for conrod. Skirt length is reduced so can be used for pre 1948 machines with larger flywheel.
Original Norton part number:
3790; A2/163 - Piston assembly with gudgeon pin