Outlaw56 (4/1/2014)
I also am on the hunt for a balancer that has a double pulley. This is for a 272 Y Block, intake ECZ9425B.
Darrel there is a double sheave balancer on Ebay (its been there for months so I think the price is too high; $230 or so) (search Ford Y block pulley). Also there are single add on pulleys, used by lots of people, out there that would be less expensive but they tend to ask a premium for those too. Also John Mummert has an aluminum double sheave add on pulley as does Borgeson (these would give you three pulleys though). I seem to recall that the add on pulleys are problematic if you have the high mount fan found on early (1955 I think) trucks. Watch for belt groove size.
Hope this helps.