Velocette Venom VM/MSS Cylinder Barrel Flange about 10/11mm thick ID: 86mm Fits all 500cc from 1954 except Thruxton! Made in England by Velocette Ltd. MSS Venom Clubman 500cc MK1 and MK2 Scrambler 500cc Endurance
Velocette Piston +040 MSS 495cc, OHV Single Port, Iron Head, 1935-48
81 mm +040 = 82 mm
Gudgeon Pin = 13/16"
including gudgeon Pin, piston rings and circlips
Piston Clearance 0.12mm or 45thou
57-1931 x 4 57-4754 x 4 57-1363 x 6 57-1362 x 5 57-1047 x 1 57-1046 x 1 57-1045 x 1 57-1549 x 1 57-0394 x 20 99-9906 x 1 57-1560 x 4 57-2526 x 4 57-0986/Alloy x 1