Question, since I need a 2 groove pully for my 440 and I have about 6 AC pullys (4 groove) laying about. Is it possible to cut 2 of the grooves off and not affect the balance?
Would have it cut at a machine shop
Done it a couple times by cutting spot weld with a roto-broach bit, worked fine and no it wont mess with the balance. If your going to a machine shop have them jig it up on a lathe and make sure it's straight, since it is easy to straighten off car(lil love tap with a mallet) a whole lot easier than down there by radiator on engine.
Those other two grooves are just spot welded on? I didn't know that...should be easy then