Ocean Green is a 1953 color.
The 235 engine with that valve cover did not become available until 1954.
The radiator housing was chopped-up to allow the radiator to be moved forward - the later 235s (late-55 through 1962) had a water pump that extended too far forward and would have hit the radiator. That engine is a later 1955 to 1962 engine (most likely a 235 but it could be a 261).
