Early 273 and 318 used the same exhaust rocker. Have one bushed and refaced. also cut for the adjuster. They did not come bushed from the factory on T/A assemblies. I might have one but they are not bushed they were all taken to the new machine shop with all engine parts. I can ask my son if he has time to bush one and cut one for the adjuster if there is any left. Assemblies were selling like hotcakes there for a while