switching to aluminum high flow waterpump, questions...

No the older pulleys will not line up unless you have extra v grooves to play around with and even then they seem to be a little off , as Bill mentioned the pump sticks out further so I bought a post 1970 360 crank pulley and water pump pulley from another member here and ran them with some after market billet brackets I got from CVF Racing , I ran these for the last 2.5 years but there was always a slight rub on the water pump pulley which was bad enough that I actually chamfered the edge of the belt to lesson it , I now have the billet crank pulley and the billet water pump pulley from CVF as well and the rub it gone , mixing and matching is a nightmare so make friends with someone at your local parts store because every time you try to change something the belt sizes will change as well , I'm lucky DusterGlen works at my local parts store so I can run back and forth with an open invoice until we get the right one for the car -Thanks Glen buddy .