318LA early triple crank pulley

kinda. turning a pump. I'm going to send it. i'm assuming the mopar crank snout is a bit larger diameter. i've checked summit racing, and tried googling some photos, but can't find an actual measurement. I did find the part# for the key #106751, which translates to 3/16" 3/4" long.

All things equal, the 3/4" shaft with the 3/16" woodruff keys in the yokes, one of them should shear first before the key on the mopar crank.

Kinda wish i knew how much torque they'll take so i can size my pump not so greedy to avoid possible headaches.