This drive works with most of the industries drive pulleys as it uses a 1.00" shaft with a .125" key and a guide to help the two belts from rubbing one another. Drive allows for two 1.00" wide drive sprockets.
It also includes a pulley/stroker washer that will help guide the belt once it is installed in the front and gives the racer a 1.125" six sided hex to throw a socket on and roll the motor over to check the bearings on the bottom end which is very handy when the mandrel has been installed over the crank bolt and the bottom end guy has no way to turn the motor over.
Mandrel hub has dual registers which are 2.250" then it steps down to 2.00" so mandrel can be used on harmonic dampners or crank hubs that use those registers. Mandrel from backside mounting flange to front of stroker hex is 3.825" overall length so mandrel can not be used with a traditional 3.500" wide blower pulley.
Mandrel is made from billet 2024 alum., has been profile machined to keep rotating weight down and is hard anodized finish for durability. Includes grade 8 mounting hardware.
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