Before restoring the engine head, we had to remove the valves and springs. We found that the best way to do this was with a giant fork to press down on the springs. A socket was placed underneath the engine head (under the valve), to keep the valve up when the spring was pressed down.
The engine head with the push rods, valves, and springs removed. If you look towards the back of the picture, you can see the push rods and valves placed in a box that indicates which exact hole the rod/valve came from.
Chris and Fred cleaning the valves with a spinning wire wheel that had Fred rigged up to an old motor (the Ford Model T is in the foreground).
Cleaning the engine head... Fred's preferred method of cleaning was: step 1) wire brush as much gunk off as possible; step 2) brush on kerosene to clean off any remaining grease; step 3) spray off the kerosene and any remnants with water from a pressured hose; and step 4) use compressed air to dry and spray off remaining water and gunk.
The final product - one cleaned engine head...