Scoot65 Posted September 6, 2014 Share Posted September 6, 2014 I was wondering if anyone could help me. Is it possible to ascertain an engine's capacity by using engine numbers rather than having to (I assume) remove the cylinder head? The engine is in a 1939 Commer Q2, it's a straight 6 engine. Is there a registry I could use or something like that? Cast into the side of the engine are these numbers:- 85 X 120 C 20xxx (I've not given full number here) Many thanks! Quote Link to comment Share on other sites More sharing options...
wally dugan Posted September 6, 2014 Share Posted September 6, 2014 do not know if this helps 85 is the bore 120 the stroke originally the bore was given as 75 capacity 3.18 litres BHP 65 at 3200 RPM Quote Link to comment Share on other sites More sharing options...
Richard Farrant Posted September 6, 2014 Share Posted September 6, 2014 Cast into the side of the engine are these numbers:- 85 X 120 C 20xxx (I've not given full number here) Many thanks! The 85 x 120mm engine has a capacity of 4085cc Quote Link to comment Share on other sites More sharing options...
Scoot65 Posted September 7, 2014 Author Share Posted September 7, 2014 Many thanks for the replies guys. Very helpful and much appreciated! Quote Link to comment Share on other sites More sharing options...
Richard Farrant Posted September 7, 2014 Share Posted September 7, 2014 I Cast into the side of the engine are these numbers:- 85 X 120 C 20xxx (I've not given full number here) Many thanks! Hi Scoot, By the way, the cast in number on the block below the bore and stroke, is not the engine serial number, that will be normally stamped in on distributor side of the engine along the side of the block below top edge. Quote Link to comment Share on other sites More sharing options...
Scoot65 Posted September 8, 2014 Author Share Posted September 8, 2014 Thanks for the additional information regarding the serial number location. I'll take a look! Thanks again. Quote Link to comment Share on other sites More sharing options...
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