389 1 1/8" Monobloc CarbThe monobloc carb was introduced in 1955 to solve the problems associated with separate floats. It was widely used on Triumph, BSA, Norton, and countless other bikes until the introduction of the concentric in 1967. The 389 series is the largest of the monobloc range. Amal is producing these new carbs on new tooling and the results are outstanding. These carbs are set up with a #3 slide, 300 main jet, #20 pilot jet, and a 106 needle jet. The bore size

The 750 pushrods replace Triumph part number 71-3330

stator is available separately by clicking here

Supplied in sets of four

Triumph Unit 650/750 1973-1980 TOP END GASKET KIT

Our extensive installation notes should answer any questions you might have about these piston rings

and if they did some would not know how to spot a defective ring or piston anyway

They are copper plated

and 750 valves and retainers

They will also work on all Triumph Bonnevilles up to 1978 with minor adjustments

If you need individual Triumph valves

This ring set is for 750cc Triumph with a nominal bore of 2

For printable PDF crankshaft journal sizes click here