Triumph Piston T80 NOS 1934-1940 = 71 mm
Tiger 80 Compr. Ratio 6:1
Mod.6/1 Compr. ratio 5.75:1
3/2 3H Compr. ratio 6:1
inc. piston rings, gudgeon pin needs replacing
Ariel Exhaust Valve 350 cc 1935-1950 NH. NF. NG. WD
1951-55 NH Mod.
Head 1.562"= 39,67 mm
Stem: 0,341" = 10,414 mm
L: 3,709"= 94,2086 mm
Made in England