So I had a bad coil and put a predator coil on and got her running again. Idled about 5 minutes and then came to a solid seize. Took the head off and carnage. Opened it up and appears it was run without oil previously. scored crank and other damage. Either way it appears the middle ring broke and gouged the cylinder and destroyed this old piece. Was just an old bushing block but I really liked the looks of it. Gonna yank off what's good and save for a later date.