I was driving my car and it developed a loud clicking noise like a fan that keeps clipping something. :ball: It seems to be coming from under the intake, I think I bent a pushrod, or a few. Plan to check when I get time. Just wondering what I could have broke in there and how much to fix/where do I get parts. I hope it wouldn't mess with my cam since those are expensive. Also does putting 73 heads on a 75 block work with stock pushrods or does it change somehow. Any help is greatly apreciated. John Is anyone selling some lifters,cam,springs,pushrods Located in Michigan/UP.