Ted, If original stampings, the frame number indicates a machine from contract C11082 (Cat Ref 30) which commenced delivery in mid-1942.
I'm a little reluctant to be definite without seeing photos of the stampings but W64052 was C4599652 and W64452 was C4600052.
An engine number KENT 33.E makes no sense to me. I wonder if it was stamped by a licensing authority, although as far as I'm aware, an engine number was not a legal requirement. Are there any other markings, including on the lower drive side front or on the front face of the timing chest ?