[jim sewell]

Thanks Gents for your replies .

From what I can gather is that the Stag engines had the same rotation as each other but as stated earlier by David that it was the ancillaries that determined if it was a left or right and this would have included the sump with its cooler fittings .
These engines would have been packaged as a left and a right engine and if replacement was required then the correct engine was selected and fitted in the field if necessary .

The compression ratio for a stag engine and a CCKW are the same ( 6.75 ) and the piston part numbers for the CCKW and the C60X are the same .
Do not have any part numbers for a stag std piston .
I have heard that the stag exhaust valves have a greater valve margin ( thicker head ) but have no prove , again would like a part number of a stag exhaust valve .

as you a probably aware the stag engine was coupled to two hydramatic transmissions and then on to a common final drive unit .