Here is a fine torque converter kit for go-karts and dune buggies. This is the Comet TAV2 Series 30 style kit with a 40/41/420 chain sprocket available with either a 3/4" or 1" bore drive clutch. This bore size will match the size of your horizontal engine drive shaft.
Both versions of this go-kart torque converter come with a driven pulley with a 5/8" diameter shaft and 10 tooth sprocket. The kit includes a black plastic cover and a 203589, 203589A, 5959, or equivalent) asymmetric go-kart drive belt.
Replaces Comet 218355A Torq-A-Verter.