BELOW IS LIST AND DIMENSIONAL SIZES + PART NUMBERS
AJS/MATCHLESS , BSA. TRIUMPH .NORTON ETC
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valves

AJS & MATCHLESS
  • 16, 16M, 16MC, 16MCS In (Alpha valve no. V21)OEM: 01-3985 Head Diameter: 1.595 Stem Diameter: 0.3720 Length: 4.320
  • G3L, G3LS, G3LCS, Ex (Alpha valve no. V22) OEM: 01-3986 Head Diameter: 1.500 Stem Diameter: 0.3715 Length: 4.275
  • AJS 33, 33CRS, Matchless G15, G15CSR Ex (Alpha valve no. V27)OEM: T2204 Head Diameter: 1.312 Stem Diameter: 0.3100 Length: 3.920
  • AJS 18, 18S, 18C, 18CS, Matchless G80, G80S, G80CS In (Alpha valve no. V55)OEM: 01-3988 Head Diameter: 1.690 Stem Diameter: 0.3730 Length: 4.060
  • AJS 18, 18S, 18C, 18CS Matchless G80, G80S, G80CS (Alpha valve no. V56)OEM: 01-3989 Head Diameter: 1.690 Stem Diameter: 0.3730 Length: 4.060
    BSA
  • BSA M20, VALVE SET
  • C11, C11G, C12 (1939-58) In (Alpha valve no. V12)OEM: 65-0208 Head Diameter: 1.281 Stem Diameter: 0.3100 Length: 3.570
  • A7 (1951-62) In (Alpha valve no.V15) OEM: 67-0394 Head Diameter: 1.315 Stem Diameter: 0.3105 Length: 3.922
  • A7, Shooting star from Eng. No. 7SS-4025 (1956-62) Ex (Alpha valve no.V16)OEM: 67-0395 Head Diameter: 1.285 Stem Diameter: 0.3100 Length: 3.920
  • A10 models (1949-62) Ex (Alpha valve no.V18)OEM: 67-0324 Head Diameter: 1.382 Stem Diameter: 0.3105 Length: 3.922
  • B33, B34, M33 (1946-58) Ex (Alpha valve no.V98) OEM: 65-1240 Head Diameter: 1.600 Stem Diameter: 0.3730 Length: 3.820
  • A10 Super Rocket, A10RR from Eng. No. CA10R-6001 in (Alpha valve no.V127)OEM: 67-0967 Head Diameter: 1.415 Stem Diameter: 0.3100 Length: 3.950
  • A10 Super Rocket, A10RR (1956-59) from Eng. No. CA10R-6001 Ex (Alpha valve no.V128)OEM: 67-0968 Head Diameter: 1.380 Stem Diameter: 0.3100 Length: 3.940
  • C15 (1959) In (Alpha valve no.V169)OEM: 40-0165 Head Diameter: 1.315 Stem Diameter: 0.3110 Length: 3.540
  • VALVE C15, C15S, C15T (1959-65) Ex (Alpha valve no.V170)OEM: 40-0166 Head Diameter: 1.312 Stem Diameter: 0.3100 Length: 3.525
  • C15S, C15SS, C15T (1960-66) In (Alpha valve no.V210)OEM: 40-0337 Head Diameter: 1.410 Stem Diameter: 0.3100 Length: 3.560
  • B40, 350 Star, SS90 (1960-65) In (Alpha valve no.V211)OEM: 41-0022 Head Diameter: 1.468 Stem Diameter: 0.3110 Length: 3.475
  • B40, 350 Star, SS90 (1960-65) Ex (Alpha valve no.V212)OEM: 41-0023 Head Diameter: 1.410 Stem Diameter: 0.3095 Length: 3.460
  • A10 Super Rocket, A10RR from Eng. No. DA10R-101 (Alpha valve no.V128)OEM: 67-1551 Head Diameter: 1.380 Stem Diameter: 0.3100 Length: 3.940
  • A65, Star Twin, Rocket, Lightning (1962-65) In (Alpha valve no.V254)OEM: 68-0156 Head Diameter: 1.410 Stem Diameter: 0.3100 Length: 3.557
  • 75cc Beagle Inlet (1963-65)OEM: 53-219 Head Diameter: 1.562 Stem Diameter: 0.3105 Length: 3.939
  • Goldstar In (Alpha valve no.V243)OEM: 65-0647 Head Diameter: 1.850 Stem Diameter: 0.3100 Length: 4.185
  • Goldstar OEM: 65-2512 Head Diameter: 1.531 Stem Diameter: 0.3485 Length: 4.100
  • A65, Lightning, Hornet, Thunderbolt Spitfire Mk2 (1966) In (Alpha valve no.V253)OEM: 68-0665 Head Diameter: 1.598 Stem Diameter: 0.3105 Length: 3.600
  • A65, Lightning, Hornet, Thunderbolt Spitfire Mk2 (1966) Ex (Alpha valve no.V254)OEM: 68-0663 Head Diameter: 1.410 Stem Diameter: 0.3100 Length: 3.557
  • B25 Starfire (1967-70) In (Alpha valve no.V255)OEM: 68-0661 Head Diameter: 1.452 Stem Diameter: 0.3105 Length: 3.677
  • B25 Starfire (1967-70) Ex (Alpha valve no.V256)OEM: 68-0662 Head Diameter: 1.315 Stem Diameter: 0.3095 Length: 3.635
  • B44 Victor (Square Head) (1967-69) In (Alpha valve no.V268) OEM: 41-0788 Head Diameter: 1.537 Stem Diameter: 0.3102 Length: 3.623
  • B44 Victor (Square Head) (1967-69) Ex (Alpha valve no.V269)OEM: 41-0789 Head Diameter: 1.410 Stem Diameter: 0.3100 Length: 3.592
  • Rocket 3, Trident T150 Inlet OEM: 70-6422 Head Diameter: 1.530 Stem Diameter: 0.3100 Length: 3.975
  • Rocket 3, Trident T150 ExOEM: 70-6423 Head Diameter: 1.312 Stem Diameter: 0.3095 Length: 3.893
  • B50 (1972) In (Alpha valve no.V272)OEM: 71-1735 Head Diameter: 1.752 Stem Diameter: 0.3105 Length: 4.085
  • B50 (1972)Ex (Alpha valve no.V273)OEM: 71-1736 Head Diameter: 1.528 Stem Diameter: 0.3100 Length: 4.027
  • A10 models (1949-62) In (Alpha valve no.V17)OEM: 67-0323 Head Diameter: 1.412 Stem Diameter: 0.3110 Length: 3.992
    NORTON
  • Dominator 77, 88,99 (1949-59) In (Alpha valve no.V26)OEM: T2010 Head Diameter: 1.312 Stem Diameter: 0.3100 Length: 3.890
  • 18, 19, ES2, 500T (1935-63) In & Ex (Alpha valve no.V37)OEM: A3-142 Head Diameter: 1.725 Stem Diameter: 0.3715 Length: 4.315
  • Manxman 88, 99, 650SS (1960-66) In (Alpha valve no.V195)OEM: 01-7221 Head Diameter: 1.406 Stem Diameter: 0.3100 Length: 3.937
  • 750 Commando, Interstate, Fastback, High Rider (1968-72) 850 Commando (1972-74) P11, P11A Ranger USA (1966-69) In (Alpha valve no.V263)OEM: 063283 Head Diameter: 1.490 Stem Diameter: 0.3115 Length: 4.069
  • 750 Commando, Interstate, Fastback, High Rider (1968-74) 850 Commando (1972-74) P11, P11A Ranger USA (1966-69) Ex (Alpha valve no.V264)OEM: 063282 Head Diameter: 1.302 Stem Diameter: 0.3115 Length: 4.020
    TRIUMPH
  • 5T (1946-59) In & Ex (Alpha valve no.V14)OEM: E1956 Head Diameter: 1.312 Stem Diameter: 0.3100 Length: 3.865
  • Thunderbird 6T (1949-62) In (Alpha valve no.V23)OEM: E2903 Head Diameter: 1.438 Stem Diameter: 0.3110 Length: 3.760
  • Thunderbird 6T (1949-62) In (Alpha valve no.V24)OEM: 70-2904 Head Diameter: 1.437 Stem Diameter: 0.3095 Length: 3.780
  • T100, TR5 (1951-59) In (Alpha valve no.V25)OEM: E2969 Head Diameter: 1.437 Stem Diameter: 0.3105 Length: 3.891
  • T15, T20, T20C (1953-59) In (Alpha valve no.V48) OEM: E3146 Head Diameter: 1.130 Stem Diameter: 0.3110 Length: 3.110
  • T15, T20, T20C (1953-59) Ex (Alpha valve no.V49)OEM: E3147 Head Diameter: 1.125 Stem Diameter: 0.3100 Length: 3.115
  • Twenty-one, 3TA (1957-66) In & Ex (Alpha valve no.V135)OEM: E3739 Head Diameter: 1.320 Stem Diameter: 0.3110 Length: 3.610
  • T110, TR6 (1954-57) TR6, 6T, T110 Thunderbird (1958-66) T120 Bonneville (1959-63) In (Alpha valve no.V137)OEM: E3310 Head Diameter: 1.500 Stem Diameter: 0.3100 Length: 3.790
  • TR6, 6T, T110, Thunderbird (1958-66) T120 Bonneville (1959-63) Ex (Alpha valve no.V138)OEM: E3927 Head Diameter: 1.343 Stem Diameter: 0.3420 Length: 3.750
  • T100A, T100SS, 5TA (1959-66) T100, T100C, T100S (1966) In (Alpha valve no.V187)OEM: E4012 Head Diameter: 1.430 Stem Diameter: 0.3110 Length: 3.540
  • T100A, T100SS, 5TA (1959-66) T100, T100C, T100S (1966) In (Alpha valve no.V188)OEM: E4013 Head Diameter: 1.312 Stem Diameter: 0.3100 Length: 3.490
  • T20, T20S, T20T (1959-68) In (Alpha valve no.V191)OEM: E3963 Head Diameter: 1.312 Stem Diameter: 03110 Length: 3.160
  • Tiger 90 (1963-65) Tiger 90 (1966-69) In (Alpha valve no.V232)OEM: E4640 Head Diameter: 1.438 Stem Diameter: 0.3105 Length: 3.665
  • T120 Bonneville (1963-72) TR6 from Eng. No. (1966-72) In (Alpha valve no.V245)OEM: 70-4603 Head Diameter: 1.594 Stem Diameter: 0.3100 Length: 3.855
  • T100C, T100, TR5T (1968) T100, T100C, T100S, T100T (1967-70) In (Alpha valve no.V265)OEM: E6853 Head Diameter: 1.531 Stem Diameter: 0.3100 Length: 3.498
  • T100, TR5T (1970-73) T100, T100C, T100S, T100T (1967-70) Ex (Alpha valve no.V266)OEM: E6854 Head Diameter: 1.312 Stem Diameter: 0.3100 Length: 3.430
  • Trident T160, Late 150 (short valve) (1973-74) In (Alpha valve no.V282)OEM: 71-3361 Head Diameter: 1.530 Stem Diameter: 0.3100 Length: 3.734
  • Trident T160, Late 150 (short valve) Ex (Alpha valve no.V283)OEM: 71-3362 Head Diameter: 1.312 Stem Diameter: 0.3100 Length: 3.669
    VELOCETTE
  • MSS (1954-66) In (Alpha valve no.V111)OEM: M2-7 Head Diameter: 1.815 Stem Diameter: 0.3110 Length: 4.127
  • Venom Endurance (1954-69) Ex (Alpha valve no.V112)OEM: M2-17 Head Diameter: 1.690 Stem Diameter: 0.3100 Length: 4.095
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