Kit includes a backplate

Tach Drive Blockoff Plg XL 71-84

Size: 1/2 inside diameter x 1/2 inch length

basically hard 1/8" thick spacers for 30mm (928 / 930 / 932) Amal carburetors as run on Triumph

which is for running stock Harley-Davidson hand controls

Finned Timing Cover - Triumph Pre-Unit Generator Models Vendor_James Gaskets Kit includes a backplateSand cast in certified AA 601 aluminum, sourced from local smelters Heat treated T6 to removed porosity, and increase material hardness. Aged grey finish that wears, just like the early race castings. The covers are sold in raw finish, just like the covers of days gone by, they can be polished by you if you wish and they look amazing when this is done well! All mounting holes, oil galleries, threads, and gasket faces CNC machined to exacting