I have just bought a LR that seems to be a bit of a hybrid of Series 2a and 3.
The engine number is 902xxxxxx indicating a Series3 petrol 2286cc - 8:1 CR 3-bearing.
However the Cylinder head has a part number on it of 525183 indicating that it is a 1962 to 1967 - 7:1 CR
Am I missing something or...