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BSA/Ariel Piston Pair NOS +030 1946-49

Ariel 500 Twin 1948-57
KJ500
KH500 1948-57
KHA500 1952-53

BSA Cylinder B40 used  incl. Piston +060
Bore: ´+060

no warranty Piston: 8:1 Compression
BSA B40 Piston +60 = 80.5mm
Pin diameter: 19.00 mm
Middle Gudgeon Pin to top of piston: 41.25 mm
Length Gudgeon Pin: 66 mm
Piston Clearence 0.12mm or 45thou wit Piston Rings, Circlips and Gudgeon Pin Please look at all pictures

Vincent Piston +040 500cc+040 ~84,98castCompression Hight: 32mmdomed with valve pockets
With Gudgeon Pin, Circlips and Piston Rings
9:1 Compression
Piston Clearance 0.12mm or 45thou
Parts Suitable for Use Soleley or Principally With Spark-Ign. Int. Combustion Piston Engines

compression ratio 9:1, Year: 1950-55 (std. bore 83.984mm) compression height 1.19/32, piston length 3" - 1&2 cylinder (dome head with valve pockets) Pin diameter .7/8. High compressionPlease look at all picturesJP Piston Made in Australia

Vincent Piston +040 ~84,98mm 1000cc
With Gudgeon Pin , Circlips and Piston Rings
9:1 Compression, Compression Hight: 32mm
cast
Parts Suitable for Use Soleley or Principally With Spark-Ign. Int. Combustion Piston Enginesincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thouPrice per PairMade in Australia

Vincent - 998cc OHV (Rapide, Black Shadow, Black Lighting, Series B, Series C, Black Knight, Black Prince, Series D) E7/6 engine, Year: 1950-55 (std bore 83.984mm) compression height 1.19/32, piston length 3" - 1&2 cylinder (dome head with valve pockets) Pin diameter .7/8. High compressionPlease look at all pictures

Vincent Piston +020 ~84,48mm 500cccast

With Gudgeon Pin, Circlips and Piston Rings
9:1 Compression, Compression Hight: 32mm
Piston Clearance 0.12mm or 45thou
Parts Suitable for Use Soleley or Principally With Spark-Ign. Int. Combustion Piston Engines
Year: 1950-55 (std. bore 83.984mm) compression height 1.19/32, piston length 3" - 1&2 cylinder (dome head with valve pockets) Pin diameter .7/8. High compressionPlease look at all picturesJP Piston Made in Australia

Vincent Piston +020 1000cc /Pair ~84.48 mmWith Gudgeon Pin , Circlips and Piston Rings
9:1 Compression, Compression Hight: 32mm
Piston Clearance 0.12mm or 45thou
Parts Suitable for Use Soleley or Principally With Spark-Ign. Int. Combustion Piston Engines
cast
Vincent - 998cc OHV (Rapide, Black Shadow, Black Lighting, Series B, Series C, Black Knight, Black Prince, Series D) E7/6 engine, compression ratio 8:1, Year: 1950-55 (std bore 83.984mm) compression height 1.19/32, piston length 3" - 1&2 cylinder (dome head with valve pockets) Pin diameter .7/8. High compressionPrice per pairPlease look at all picturesJP Piston Made in Australia

AJS/Matchless Piston 350cc +040 Iron Head 1933-46 Iron Head
Compression 6.3:1
complete incl. piston rings
f. G3LS
JP Piston
D3.G3.G3L.G4JP Piston Made in Australiawith Piston Rings, Gudgeon Pin and Circlips

Piston Clearence 0.12mm or 45thou

69 mm = STD 
+040= 70 mm
Pin Diameter 22mm 7/8"
 Please look at all pictures

Ajs. Matchless.  Piston Ring Set / Piston Rings +060 350 AMC 1948-65. JP. 

Diameter: 70.5mm. Compression Rings are 1,6 mm x 2,9 mm - 1/16“ x 1/8“. Oil Ring 3 mm x  2,8 mm. Only for JP Pistons. Not for Hepolite Pistons! only AJS/Matchless 350cc 1937-. JP Piston Rings Made in Australia. For JP Pistons 9990. JP0751. 10465. JPO413. 13265. JP13265. 

Ajs. Matchless. Piston Ring Set / Piston Rings +040 350 AMC 1937-65. JP. 

Diameter: 70mm. Compression Rings are 1,6 mm x 2,9 mm - 1/16“ x 1/8“. Oil Ring 1/8" 3.2 mm x  2,8 mm. only for JP Pistons. not for Hepolite Pistons! only AJS/Matchless 350cc 1937-. JP Piston Rings Made in Australia. For JP Pistons 9990. JP0751. 10465. JPO413. 13265. JP13265. 

Ajs. Matchless. Piston Ring Set / Piston Rings Std AMC 350 1948-65. JP. 

Diameter: 69mm. Compression Rings are 1,6 mm x 2,9 mm - 1/16“ x 1/8“. Oil Ring 3 mm x  2,8 mm. 1/8". Only for JP Pistons. JP Piston Rings Made in Australia. Not for Hepolite Pistons! Only AJS/Matchless 350cc 1937-. For JP Pistons 9990. JP0751. 10465. JPO413. 13265. JP13265.

Ajs. Matchless.  Piston Ring Set / Piston Rings +030 AMC 350 1948-65. JP. 

Diameter: 69,75mm. Compression Rings are 1,6 mm x 2,9 mm - 1/16“ x 1/8“. Oil Ring 3 mm x  2,8 mm. 1/8". Only for JP Pistons. Not for Hepolite Pistons! Only AJS/Matchless 350cc 1937-. JP Piston Rings Made in Australia. For JP Pistons 9990. JP0751. 10465. JPO413. 13265. JP13265.

Ajs. Matchless Piston Ring Set / Piston Rings +020 AMC 350 1948-65. JP. 

Diameter: 69.5mm. Compression Rings are 1,6 mm x 2,9 mm - 1/16“ x 1/8“. Oil Ring 3 mm x  2,8 mm. JP Pistons only. JP Piston Rings Made in Australia. Not for Hepolite Pistons! only AJS/Matchless 350. For JP Pistons 9990. JP0751. 10465. JPO413. 13265. JP13265.cc 1937-. 

AJS/Matchless Piston 350cc +030 Iron Headd 1933-46 Iron Head
Compression 6.3:1
complete incl. piston rings
f. G3LS
JP Piston
D3.G3.G3L.G4JP Piston Made in Australiawith Piston Rings, Circlips and Gudgeon Pin

Piston Clearence 0.12mm or 45thou

69 mm = STD. = 69.75mm

Pin Diameter 22mm 7/8"
Compression Height: 29mmPlease look at all pictures

BSA Piston M20 +60 . 83.5 mm including gudgeon pin, circlips and piston rings 82mm +060 (=83.5mm)
Piston Clearance 0.12mm or 45thou

These pistons now come with 4 piston rings.
You can also use them only with 3 piston rings. measurements last pict. or techn. data

BSA Piston M20 Std.
including gudgeon pin, circlips and piston rings
82mm
Piston Clearance 0.12mm or 45thou

These pistons now come with 4 piston rings.
You can also use them only with 3 piston rings.measurements see techn. data

BSA Piston M20 +040. 83.0mm
complete with circlips and gudgeon pin
82mm +040 (=83mm)
Piston Clearance 0.12mm or 45thouThese pistons now come with 4 piston rings.
You can also use them only with 3 piston rings.measurements second picture or techn. dataincluding gudgeon pin, circlips and piston rings

BSA B44 Piston complete
+040 = 80 mm
compr. ratio 9.4:1
Made by GPM
Middle gudgeon pin to lowest point of piston: 29 mm
Middle gudgeon pin to highest point of piston: 41,5 mm
Gudgeon pin diam. 19 mm
Useable on JAP. JOS engine or JTOR. Jap engine clearance 0,13mm
can be used f. Norton at +40
Piston Clearance 0.12mm or 45thou

weight without rings 371 g
weight with rings 400 g

with Piston Rings, Circlips and Gudgeon Pin

JAP Twin SV Piston Brough Superior/Zenith/Coventry Eagle +020 including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou JP / Price per Pair
STD= 85.725mm
1924-39 Piston
1000cc K Type 1923-29= 85.7 x85
1150cc LT, LTZ,L Type = 85.7 x95

500cc= Model K
85.7mm x 85

550cc = Model L
85.7mm x 95

600cc= Model U
85.7mm x 104

Gudgeon Pin: 13/16" - 20.7mm
Compression Height: 1 5/8" - 41.3mm
Piston Length: 3 1/4" - 82.5mm

JAP Twin SV Piston Brough Superior/Zenith/Coventry Eagle +030 including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou JP / Price per Pair
STD= 85.725mm
1924-39 Piston
1000cc K Type 1923-29= 85.7 x85
1150cc LT, LTZ,L Type = 85.7 x95

500cc= Model K
85.7mm x 85

550cc = Model L
85.7mm x 95

600cc= Model U
85.7mm x 104

Gudgeon Pin: 13/16" - 20.7mm
Compression Height: 1 5/8" - 41.3mm
Piston Length: 3 1/4" - 82.5mm

JAP Twin SV Piston Brough Superior/Zenith/Coventry Eagle +040 including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou JP / Price per Pair
STD= 85.725mm
1924-39 Piston
1000cc K Type 1923-29= 85.7 x85
1150cc LT, LTZ,L Type = 85.7 x95

500cc= Model K
85.7mm x 85

550cc = Model L
85.7mm x 95

600cc= Model U
85.7mm x 104

Gudgeon Pin: 13/16" - 20.7mm
Compression Height: 1 5/8" - 41.3mm
Piston Length: 3 1/4" - 82.5mm

JAP Twin SV Piston Brough Superior/Zenith/Coventry Eagle +060 including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou JP / Price per pair
STD= 85.725mm
1924-39 Piston
1000cc K Type 1923-29= 85.7 x85
1150cc LT, LTZ,L Type = 85.7 x95

500cc= Model K
85.7mm x 85

550cc = Model L
85.7mm x 95

600cc= Model U
85.7mm x 104

Gudgeon Pin: 13/16" - 20.7mm
Compression Height: 1 5/8" - 41.3mm
Piston Length: 3 1/4" - 82.5mm

Vincent Piston STD ~83,98mm 500cc
With Gudgeon Pin - DM: 7/8", Circlips and Piston Rings
9:1 Compression, Compression Hight. 32mm, cast
Piston Clearance 0.12mm or 45thou
Parts Suitable for Use Soleley or Principally With Spark-Ign. Int. Combustion Piston Engines

JP Piston Made in Australiadomed with valve pocketsPlease look at all pictures

Vincent Piston STD ~ 83,98mm 1000cc
With Gudgeon Pin - DM: 7/8", Circlips and Piston Rings
9:1 Compression, Compression Hight: 32mm
Piston Clearance 0.12mm or 45thou, cast
Parts Suitable for Use Soleley or Principally With Spark-Ign. Int. Combustion Piston Engines
domed with valve pockets
JP Piston Made in AustraliaPlease look at ALL Pictures

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
 

Vincent Piston +030 500ccWith Gudgeon Pin - DM: 7/8", Circlips and Piston Rings
9:1 Compression, Compression Hight: 32mm
Piston Clearance 0.12mm or 45thou, cast
Parts Suitable for Use Soleley or Principally With Spark-Ign. Int. Combustion Piston Engines
domed with valve pockets
JP Piston Made in Australia

compression ratio 9:1, Year: 1950-55 (std)Please look at all pictures