only stock covers, and no unweighted hubs. I got away with a single key on the crank in my LS-7 for a long long time. I did double key the 427 in Plan II, but it really didn't need it, I think.
Sorry have not got back to you, all I have left is 8mm stuff. I must of cut down all the 1/2 pulley I had. I do have a 3" 570H belt.
A 2-inch drive is fine. The pulleys are getting scarce in that size, but I own a lathe. I cut down 3's. Idlers for 2-inch are still out there. I never use a harmonic damper, just a crank hub, or hub and weight, if external balance, even on the street. I cut all cranks for a second key, mostly because I own a mill and a jig.
The Jalopy Journal
