Triumph 650 To 750 Twin Big Bore Kit - 1963-72 - 6T / TR6 / T120

  • Sale
  • $ 649.95
  • Regular price $ 668.12
  • 2 available

English Made Triumph 650 Unit Twins Big Bore Kit. If your seeking more power for your 650 then you have come to the right place! This English made big bore kit comes with everything you need to convert your 650 Triumph to a powerful 750. Yes bumping from a 650 to a 750 does make a BIG difference.


Included is an English made 9-bolt cylinder barrel, cast pistons by Goetze (9:1 ratio), rings by Goetze, wrist pins, complete top-end gasket set with push rod tube seals, and a copper head gasket. This big bore kit will work on all Triumph 650 Unit Twins (Bonneville, T120R, Tiger, TR6R. Trophy, TR6C, Etc) from 1963-1972 with a 9-bolt cylinder head. Instructions included. Please read the full listing to insure that this kit is correct for your application. 


  • Made in England
  • Free shipping in the USA