You have a 1936 206.8 cu. in. (207) head and block. It is the replacement engine for the original 1935 engine. They share a lot of parts, but it is a one year block and head. Your oil pump, water pump and distributor are all 1936 ONLY, the rest of the engine parts are the same as 1935.
Are you sure it's a 1935 Truck?
What's the engine serial number (stamped on the pad next to the distributor)?
Valve spring pressure will be about 45 pounds closed and 100 pounds open. Might take a really big screwdriver or pry bar to flex the spring when it's under tension.
Mike B
