I built my own out of 1018 steel. Mine wrap the shaft about 200°. This keeps them from falling off the shaft when not bolted to the head. Just a personal preference. I used ARP studs but came up with 5/16-18 flange nuts that use a 9/16 wrench size to put more surface on the contact area.

37433.jpg
Last edited by Burnincircles; 09/10/16 01:02 AM.