Gerber built everything for that motor including a block with extra mains and heads. I had one those motors till about a year ago when I sold it at the Turlock swam meet. They do pop up at swap meets. His rods were tubular and probably copied from an aircraft engine at that era. The motors were designed to compete with HAL and other motors at the time. Bob Roof’s car had one of these motors and with Bob Carey at the wheel won the AAA national championship in 1928.
Also much rarer, is the head that Lee Chapel of Lee’s Speed shop fame built. He set a record at 111.11 at Muroc Dry Lake in 1930. Like the Model T motor there is a lot of speed parts that were developed for that motor from the simple to the wild.
