Here is a shot of the innards of the engine. This engine looks really small with the heads and cylinders removed. I guess that is why it only makes 50 horsepower.
The other disappointing thing is that I have 2 different heads. It looks like 1 is newer than the other one. I need to measure the valves and make sure they are the same size. You have to expect the unexpected when your not sure who built the engine originally. This head is cleaned up and ready to be installed.