http://www.network54.com/Forum/threa...eid=1113413434
573 lbs according to that link.One of the guys on fordmuscle just did an alloy head bb swap in a mustang and only gained 60 lbs in total over the clevo
I just returned from Weighing "The Yellow Monster"
We have a total weight gain of "Sixty Pounds"
With the Cleveland the weight slip was 3,700 pounds, with the 468 (aluminum head) BB the new weight slip is 3,760 pounds.