Search

AJS/Matchless Piston 350cc +060 Iron Head 1933-46
Compression 6.3:1
complete incl. piston rings, gudgeon pin, circlips
suitable for Mod. D3.G3.G3L.G4
Piston Clearence 0.12mm or 45thou
69 mm = STD 69.5mm   +020 = 69.5 mm

Pin Diameter 7/8" = 22.22 mm
Compression Height: 29 mm
complete incl. piston rings, gudgeon pin, circlips
Piston Clearence 0.12mm or 45thouPlease look at all pictures
 

Spark Plug Champion L86C. NGK B5HS. B6HS. Set of 2
BSA A7/A10 - Iron Head Twins
WM20 up to 1949 -Iron Head for 14mm
JM20
M20
BSA Bantam -D1-D14
fitted to most iron head motorcycles with 14 mm

Please Note:
M20 and 16H owners, please check the size of your spark plug, as it can be 14 mm or 18 mm.

If 18 mm order spark plug D9 or D14B31, B33 singles. Triumph 3T, 5T, 6T, iron heads twins. Norton iron head Twins and singles 1946 on with short reach. Ajs/matchless iron head singles 1937-on.AJS OHV Models 14mm, 1946 350ccAriel SV Models 14mm, 1/2" reachBSA Bantam D1 1954, M21 Cast Iron HeadDOT Vivi Monza 50ccGreeves Anzani enginesMatchless SV models 14mm, 1946 350ccRoyal Enfield Ensign, RE, PrinceScott 498-596 Flying Squirrel Town RidingTriumph SV models 14mm exept TRWVelocette GTP 250cc 2 strokeVilliers Engines 98cc Junior, 98cc 4F, 6F,122cc 8D, 9D, 10D, 12D, 13D, 247cc Starmaker (Trials)

Spark plug Champion N4CSet of 2Triumph 350, 500, 650 with Alloy head. BSA Twins with Alloy head. Ajs/Matchless Twins and Singles with Alloy head. Many other makes with long reach Alloy head.
BSA A7/A10 - Aloy Head

all AJS/Matchless
Alloy Head Model
1950-1966
Thread: 14mm

=NGK B6ES.B5ES AJS 33, 16C ExpertsAriel Leader, Arrow, Arrow Super Sport, Golden Arrow, Arrow 200BSA A7SS, A10RGS, A10RR, A10SR, A50, A50C, A50CC, A65, A65LC, A65R, A65T, B32 Alloy Head, B40SS90, Victor B44R, B44SS, Victor B44ET, B44GP, B44VS, C15SS80, Bantam D10, D14/4, D14/4SMatchless 1964 onwards, G3C Maestro, G3C Trials, G80 Major, G12 MajesticNorton 650 Dominator, 650 Mercury, 1964 onwards all other modelsRoyal Enfield 736cc InterceptorTriumph TR5 Trophy Alloy, TR5A, 6T Alloy, T100, T100S, T100T, T110 Alloy, 21 5 TA, T100A, TR7A, TR25, Tiger 90, TR6, T120 pre 1968, 1968 onwardsVelocette: MSS 500cc Alloy, Viper Sports, Viper Clubman, Venom Special, Venom Sports

Spark Plug Champion L82C. NGK B7HS.
14 mm Thread AJS 1946 500cc, 1947-49 All Models (cast iron head) Ariel Square 4 Cast iron and MkI alloy, OHV Models Cast iron 14mm except VB, FH Models BSA A7, A10GF, B31, B33, B32 cast iron head, C12, Bantam D1 1954 onwards, D3, D5, D7, M33 Douglas 350cc Mark V, Dragonfly, 350cc Comp. Model, 350cc 80Plus, 90Plus Greeves 24 TJ Matchless  1946 500cc, 1947-49 all models cast iron head Norton Model 18 490cc OHV 30, 40 Cast Iron, ES2, 88, 7, Cast Iron Royal Enfield 350cc Clipper & G, 248ccc. Clipper & Crusader & J2 500cc, 248cc Olympic, Continental, Continental GT, 350cc Bullet, 500cc Bullet 1/2" reach, Super Meteor, Meteor Minor to Eng. No. SMCA7027, 700ccMeteor Twin, 500cc Twin 12" reach, Trial Works Replica, 249cc Turbo Twin Rudge Special & Ulster 14mm Cast Iron, All other models 14mm Scott Fast Riding Sunbeam 14mm Triumph 150cc Terrier, T20, T20C, T20T, T20SL, Tiger Cub, T20SH, TR20, Trials Cub, Super Cub, Sports Cub, TS20 Scrambler, 3T, 5T Speed Twin, 6T Thunderbird & TR5 Trophy, Cast Iron, T100, T110 Cast Iron, OHV models 14mm, SV Models 18mm, Model TRW SV army Velocette MOV 250cc OHV, MAC 350cc Cast Iron Head, MSS 500cc Cast Iron Head Villiers Engines 50cc MK.3K, 98cc Mks 1F, 2F, 4F, 6F, 122cc 11D, 147cc 29C, 30C, Fan Cooled, 147cc 30C, 148cc Mk 31C, 173cc 2L, 3L, 197cc 6E, 7E,9E, 10E,11E, 225cc 1H, 246cc 2H, 246cc 31A/4S, 31A/3S, 32A. 35A. 37A, 250cc 4T Twin, 324cc 3T Twin, 353cc 28B Vincent 14mm

Spark plug Champion N4C

BSA A7/A10 - Aloy Head

all AJS/Matchless
Alloy Head Model
1950-1966
Thread: 14mm

=NGK B6ES.B5ES  AJS 33, 16C Experts Ariel Leader, Arrow, Arrow Super Sport, Golden Arrow, Arrow 200 BSA A7SS, A10RGS, A10RR, A10SR, A50, A50C, A50CC, A65, A65LC, A65R, A65T, B32 Alloy Head, B40SS90, Victor B44R, B44SS, Victor B44ET, B44GP, B44VS, C15SS80, Bantam D10, D14/4, D14/4S Matchless 1964 onwards, G3C Maestro, G3C Trials, G80 Major, G12 Majestic Norton 650 Dominator, 650 Mercury, 1964 onwards all other models Royal Enfield 736cc Interceptor Triumph TR5 Trophy Alloy, TR5A, 6T Alloy, T100, T100S, T100T, T110 Alloy, 21 5 TA, T100A, TR7A, TR25, Tiger 90, TR6, T120 pre 1968, 1968 onwards Velocette: MSS 500cc Alloy, Viper Sports, Viper Clubman, Venom Special, Venom Sports

Spark Plug Champion N4C. Box of 10 BSA A7/A10 - Aloy Head

all AJS/Matchless
Alloy Head Model
1950-1966
Thread: 14mm

=NGK B6ES.B5ES  AJS 33, 16C Experts Ariel Leader, Arrow, Arrow Super Sport, Golden Arrow, Arrow 200 BSA A7SS, A10RGS, A10RR, A10SR, A50, A50C, A50CC, A65, A65LC, A65R, A65T, B32 Alloy Head, B40SS90, Victor B44R, B44SS, Victor B44ET, B44GP, B44VS, C15SS80, Bantam D10, D14/4, D14/4S Matchless 1964 onwards, G3C Maestro, G3C Trials, G80 Major, G12 Majestic Norton 650 Dominator, 650 Mercury, 1964 onwards all other models Royal Enfield 736cc Interceptor Triumph TR5 Trophy Alloy, TR5A, 6T Alloy, T100, T100S, T100T, T110 Alloy, 21 5 TA, T100A, TR7A, TR25, Tiger 90, TR6, T120 pre 1968, 1968 onwards Velocette: MSS 500cc Alloy, Viper Sports, Viper Clubman, Venom Special, Venom Sports

Champion. 18mm x 1,5  diameter at thread. =Sports engines = Bosh M7AC and M5AC.
Height without Thread: 60mm.
Early H,J,K,WM20/21 Bsa.
16H Norton. Big 4
All Norton SV Mod.
Ariel OHV Mod. which use 18 mm spark plugs

Please Note:
mid war changing to 14 mm
M20 and 16H owners, please check the size of your spark plug, as it can be 14 mm or 18 mm.
If 14 mm order spark plug L86CCompareable spark plugsBosch alt M 240 T1Bosch neu M4ACNGK A-7AJS OHV Models 18mmAriel OHV Models 18mmMatchless OHV Models 18mmNorton All SV 18mmRudge 18mmSunbeam All 18mmTriumph OHV Models 18mmVilliers Engines 98cc 35PD, 197cc MK 5EVincent 18mm

Champion. 18mm diameter at thread
Height without Thread: 60mm.
Early H,J,K,WM20/21 Bsa.
16H Norton. Big 4
All Norton SV Mod.
Ariel OHV Mod. which use 18 mm spark plugs

Please Note:
mid war changing to 14 mm
M20 and 16H owners, please check the size of your spark plug, as it can be 14 mm or 18 mm.
If 14 mm order spark plug L86CAJS OHV Models 18mmAriel OHV Models 18mmMatchless OHV Models 18mmNorton All SV 18mmRudge 18mmSunbeam All 18mmTriumph OHV Models 18mmVilliers Engines 98cc 35PD, 197cc MK 5EVincent 18mm

Spark Plug Champion L86C. NGK B5HS. B6HS.
BSA A7/A10 - Iron Head
WM20 up to 1949 -Iron Head for 14mm
JM20
M20
BSA Bantam -D1-D14
fitted to most iron head motorcycles with 14 mm

Please Note:
M20 and 16H owners, please check the size of your spark plug, as it can be 14 mm or 18 mm.

If 18 mm order spark plug D9 or D14 AJS OHV Models 14mm, 1946 350cc Ariel SV Models 14mm, 1/2" reach BSA Bantam D1 1954, M21 Cast Iron Head DOT Vivi Monza 50cc Greeves Anzani engines Matchless SV models 14mm, 1946 350cc Royal Enfield Ensign, RE, Prince Scott 498-596 Flying Squirrel Town Riding Triumph SV models 14mm exept TRW Velocette GTP 250cc 2 stroke Villiers Engines 98cc Junior, 98cc 4F, 6F,122cc 8D, 9D, 10D, 12D, 13D, 247cc Starmaker (Trials)

Spark Plug Champion L86C - 14mm. Box of 10 BSA A7/A10 - Iron Head
WM20 up to 1949 -Iron Head for 14mm
JM20
M20
BSA Bantam -D1-D14
fitted to most iron head motorcycles with 14 mm

Please Note:
M20 and 16H owners, please check the size of your spark plug, as it can be 14 mm or 18 mm.

If 18 mm order spark plug D9 or D14 AJS OHV Models 14mm, 1946 350cc Ariel SV Models 14mm, 1/2" reach BSA Bantam D1 1954, M21 Cast Iron Head DOT Vivi Monza 50cc Greeves Anzani engines Matchless SV models 14mm, 1946 350cc Royal Enfield Ensign, RE, Prince Scott 498-596 Flying Squirrel Town Riding Triumph SV models 14mm exept TRW Velocette GTP 250cc 2 stroke Villiers Engines 98cc Junior, 98cc 4F, 6F,122cc 8D, 9D, 10D, 12D, 13D, 247cc Starmaker (Trials)

Champion Spark Plug N5C
14 mm

For Racing

=B6EB. B6EB-L. B5EB. B4ES. A.M.C AJS 1950-64 all models ( alloy heads ) exept racer Ariel Square 4 MkII Alloy Ariel VB exept FH, HS BSA B32GS, B40, B34 Alloy Head, C10L, C15, C15T Matchless 1950-64 all models: Alloy Head exept scramblers and racers Norton Model 16H 500cc SV, Big Four 596cc SV, E2, 88,7, 99, Alloy, 19R, 19S, 50, 77, 500T Royal Enfield 350cc Bullet 3/4" reach, 500cc Bullet 3/4" reach, Meteor Minor Sports, From Eng. No. 7028 onwards, 700cc Constellation Sunbeam 1946 onwards S7 & S8 Twins Triumph T140, TR65 Velocette: KSS 350 MK.II, MAC 350cc Alloy, Viceroy Vincent Black Shadow, Rapide, Comet, Meteor, Lightning, Prince, Knight, Victor

Spark Plug Champion D16. T10. 18mm = SV Motorcycle = Bosh M10AC

H,J,K,WM20 Bsa. Norton 16H, Big4
all early BSA Mod.
also Sloper

please note mid war changing to:-
Champion L86c 14mm.AJS SV Models 18mmAriel SV Models 18mmMatchless SV Models 18mmVilliers Engines 98cc Midget, 98cc Deluxe, 147cc Mk 8C, 148cc Mk 12C, 15, 197cc Super Sports 18mm, 249cc MK14A, 346cc 14B, 27B

Champion Spark Plug N5C Box of 10
14 mm

For Racing

=B6EB. B6EB-L. B5EB. B4ES. A.M.C AJS 1950-64 all models ( alloy heads ) exept racer Ariel Square 4 MkII Alloy Ariel VB exept FH, HS BSA B32GS, B40, B34 Alloy Head, C10L, C15, C15T Matchless 1950-64 all models: Alloy Head exept scramblers and racers Norton Model 16H 500cc SV, Big Four 596cc SV, E2, 88,7, 99, Alloy, 19R, 19S, 50, 77, 500T Royal Enfield 350cc Bullet 3/4" reach, 500cc Bullet 3/4" reach, Meteor Minor Sports, From Eng. No. 7028 onwards, 700cc Constellation Sunbeam 1946 onwards S7 & S8 Twins Triumph T140, TR65 Velocette: KSS 350 MK.II, MAC 350cc Alloy, Viceroy Vincent Black Shadow, Rapide, Comet, Meteor, Lightning, Prince, Knight, Victor

Champion Spark Plug  N5C Set of 2
14 mm

For Racing

=B6EB. B6EB-L. B5EB. B4ES.A.M.CAJS 1950-64 all models ( alloy heads ) exept racerAriel Square 4 MkII AlloyAriel VBexept FH, HSBSA B32GS, B40, B34 Alloy Head, C10L, C15, C15TMatchless 1950-64 all models: Alloy Head exept scramblers and racersNorton Model 16H 500cc SV, Big Four 596cc SV, E2, 88,7, 99, Alloy, 19R, 19S, 50, 77, 500TRoyal Enfield 350cc Bullet 3/4" reach, 500cc Bullet 3/4" reach, Meteor Minor Sports, From Eng. No. 7028 onwards, 700cc ConstellationSunbeam 1946 onwards S7 & S8 TwinsTriumph T140, TR65Velocette: KSS 350 MK.II, MAC 350cc Alloy, ViceroyVincent Black Shadow, Rapide, Comet, Meteor, Lightning, Prince, Knight, Victor

Spark Plug Champion D16. T10. 18mm Set of 5

H,J,K,WM20 Bsa. Norton 16H, Big4
all early BSA Mod.
also Sloper

please note mid war changing to:-
Champion L86c 14mm. AJS SV Models 18mm Ariel SV Models 18mm Matchless SV Models 18mm Villiers Engines 98cc Midget, 98cc Deluxe, 147cc Mk 8C, 148cc Mk 12C, 15, 197cc Super Sports 18mm, 249cc MK14A, 346cc 14B, 27B

Spark Plug Champion N3C
T140v.TR7v. Triumph
14 mm ThreadAJS Y4 ScramblerAriel HSBSA A50W, A65H, A65FS, A65L, A65SS, B25 Starfire, B34 GS Clubmans Road use, Scrambler, Gold Star Racer Road use, C15S, C25, Rocket 3Francis Barnett Scrambler 82Greeves 36MX4, Griffon 56 & 58James 250cc ScramblerMatchless G3 mercury, G12CSR Monarch, G2CSR Monitor Super SportsNorton 30, 40 AlloyTriumph 1968 onwards, T150 TridentVelocette Viper Special, Venom Clubman, Venom Endurance, 350 Scrambler, 500 Scrambler & Vee-line Models, Venom ThruxtonVilliers Engines 246cc 33A, 34A, 36A, 247cc Starmaker ( scrambles)Vincent Grey Flash 500cc

Allen Head Screw 1/4" x 7/8" BSF/BSC 26TPI

Spring Frame Models Matchless / Handlebar Fixing ScrewP11/P11A/AMC

350 G3LS
350 G3LCT
350 G3LCS

500 G80s
500 G80CS

Petrol and Oil Tank Cap Chrome
with vent

Triumph / Norton / BSA/Matchless/AJS
Oil Tank Cap
(not for all models)Please view ALL picturesMade in England.

Valve Guide Tool
fits all Triumphs, all Norton Twins,
Triumph Triples, BSA/Triumph Unit Singles, AJS/Matchless Twins and also can be used and adapted for other models.
It also fits Ariel Twins.

Made in England

AJS Steering Head Race 1926-1930
250cc
350cc
500cc
8hp
All Models
H 822
H 820
H 818

Not Matchless

Suitable for 3/16" Balls

Spark Plug Champion N3C Box of 10
T140v.TR7v. Triumph
14 mm Thread AJS Y4 Scrambler Ariel HS BSA A50W, A65H, A65FS, A65L, A65SS, B25 Starfire, B34 GS Clubmans Road use, Scrambler, Gold Star Racer Road use, C15S, C25, Rocket 3 Francis Barnett Scrambler 82 Greeves 36MX4, Griffon 56 & 58 James 250cc Scrambler Matchless G3 mercury, G12CSR Monarch, G2CSR Monitor Super Sports Norton 30, 40 Alloy Triumph 1968 onwards, T150 Trident Velocette Viper Special, Venom Clubman, Venom Endurance, 350 Scrambler, 500 Scrambler & Vee-line Models, Venom Thruxton Villiers Engines 246cc 33A, 34A, 36A, 247cc Starmaker ( scrambles) Vincent Grey Flash 500cc

Spark Plug Champion N3C Set of 2
T140v.TR7v. Triumph
14 mm ThreadAJS Y4 ScramblerAriel HSBSA A50W, A65H, A65FS, A65L, A65SS, B25 Starfire, B34 GS Clubmans Road use, Scrambler, Gold Star Racer Road use, C15S, C25, Rocket 3Francis Barnett Scrambler 82Greeves 36MX4, Griffon 56 & 58James 250cc ScramblerMatchless G3 mercury, G12CSR Monarch, G2CSR Monitor Super SportsNorton 30, 40 AlloyTriumph 1968 onwards, T150 TridentVelocette Viper Special, Venom Clubman, Venom Endurance, 350 Scrambler, 500 Scrambler & Vee-line Models, Venom ThruxtonVilliers Engines 246cc 33A, 34A, 36A, 247cc Starmaker ( scrambles)Vincent Grey Flash 500cc

Spark Plug NGK B8ES AJS Y4 Scrambler Ariel HS BSA A50W, A65H, A65FS, A65L, A65SS, B25 Starfire, B34GS Road use, Scrambler, Gold Star Racer Road use, C15S, C25, Rocket 3 Francis Barnett Scrambler 82 Greeves 36 MX4 Griffon 56 & 58 James 250cc Scrambler Matchless G3 Mercury, G12CSR Monarch, G2CSR Monitor super sports Triumph TR6, T120 1968 onwards, T150 Trident Velocette Viper Special, Venom Clubman, Venom Endurance, 350 Scrambler, 500 Scrambler & Vee-line models, Venom Thruxton Villiers engines 246cc 33A, 34A, 36A, 247cc Starmaker ( racing) Vincent Grey Flash 500cc      

44887
G12. 1966
T264
T6846
20666
The Drive side case is from a Model 7 500CC engine. The Stamping G12 and engine number 44887 would suggest this as being from a dynamo model as manufactutured in 1952. See attachment. The Timing side case is from a later non-dynamo engine. Probably from an alternator Model 88 or 99 manufactured 7 to 9 years later. It would be quite difficult to build this engine into a 750cc motor as that would require extensive modifications.
The Norton factory always stamped both cases and sometimes the Timing Cover with the same number. On the Drive case this would be inside just above the bearing. On the Timing case it is outside usually just above the half timing pinion shaft.
 

AJS/M.,Norton, Triumph,Vincent Ball Bearing Timing Side Main early MJ1JC3
OD: 2 1/2"
ID: 1"
W: 3/4"
MJ1JC3
Vincent E91
Ajs Matchless 021872
Norton
RMS8.MS10