1972 Chrysler Newport with 400 engine. Completely factory original with 80,000 miles on it.
I had a moment of teenage dumbassery when I dropped a screw into the exhaust port for the choke and couldn't find it. A week or two later it started knocking. I've started disassembling the engine, and that screw ended up lodged in one of the valves at the front passenger side of the engine. When I shine a flashlight into the port, I can see the screw head, and a round metal shaving in there. After...
Looking for advice on valves, lifters etc.
