Don, did you reuse the same frame purches to mount the 6 that you had on the frame with the 460? I'm working on rebuilding the 460 in the grenn 76 f250 and the person who put the 460 in hacked up the frame purches, it was a 360 before, to mount the 460 and I need to replace them. What years of frames would have the right frame mounts? So I can find new ones. Or if did not use them on the 6, would like to get rid of them?