Here is an original trip roller advance retard assembly for a 1hp IHC Famous or Titan engine. These parts in good shape and ready to use, They were removed from a running engine. There are no cracks, breaks, or welds. Check out the pictures and decide. Removed from a running engine. No Cracks, Breaks, or Welds. Seems to function just as it should. The mounting holes are 5/8 apart on center. The step bolt is 5/16 where it screws into the head. Very hard part to find!