1 long Velocity stack tube Amal 389 carb monoblock 1950s to 1967 Triumph BSA * Type:New They measure a total length

They measure a total length of 3 1/2"

Years: 1964 1965 1966

This will replace your rectifier and the voltage regulator on your classic British motorcycle with single phase

then you will require a different primary gasket

Manufacturer Part Number: SC-B44COMPLETEKIT

1 long Velocity stack tube Amal 389 carb monoblock 1950s to 1967 Triumph BSA * Type:New They measure a total lengthYou will get one brand new aluminum stack as pictured. This is threaded to screw onto your 389 monoblock carb. This measures 2 3 8" long plus the convex screen which sticks out 5 8". These are Made in the UK and are quality spun aluminum. Condition: NEW Brand: STEADFAST CYLCLES Country Region of Manufacture: UNITED KINGDOM Manufacturer Part Number: SC V389 Surface Finish: ALUMINUM