Hi everyone. I am looking for a little help with the engine in my 55 Dodge truck. I have been searching the threads for some good info on my poly head, but can’t seem to find what I am looking for, and hopefully someone has had experience with the valve train. (Where I think the issue lies) I have had it for about 12 years, and bought it from the son of the original owner. According to him, the engine had never been out, and is original to the truck. I have been driving it during the summer, and it has been running great. All of the sudden, it developed a marked power loss, with some backfiring and noisy ticking in the top end. (I believe) I pulled it into the garage and pulled off the intake, valve covers, and valley pan, looking for a possible bent push rod. They all look ok, and spin freely on the lifters, except the drivers side very front of the engine lifter. It looks as if it is protruding from the block about 1/4 to a half inch further then all the others, and the push rod has pressure on it. Question being, as I am slightly unfamiliar with the poly, should the lifter be more into the block? I don’t see anything else that could point me in the direction. I believe it is a 241 poly engine, i have some pics of it. Thanks for any help with the ol fella.