Triumph 650 To 750 Twin Big Bore Kit - 1963-72 - 6T / TR6 / T120 Nicholson making sure your cam bushings

making sure your cam bushings are inline after you install them is an animal of a different color

Comes complete with every thing you need from the ball bearings

Etc) from the Early 1960's through the Late 1960's

70-4501 or E4501

Fits Triumph 500 Twins from 1969-1974

Triumph 650 To 750 Twin Big Bore Kit - 1963-72 - 6T / TR6 / T120 Nicholson making sure your cam bushingsEnglish 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, rings, wrist pins, complete top end gasket set with push rod tube seals, and a copper head