jajolee Posted October 14, 2014 Share Posted October 14, 2014 helloI have a big engine and I like to know the yearit is a ohcit has an plate on it that readsGMC truck & coach div.270370465bore stroke cyl3 25/32 4 6the same number is stamped in the engineI am sorry I have no picturesthanksjan Link to comment Share on other sites More sharing options...
CarlLaFong Posted October 14, 2014 Share Posted October 14, 2014 OHC GMC??? The displacement works out to 270 CI. Never heard of a 270 OHC Jimmy. Link to comment Share on other sites More sharing options...
jajolee Posted October 14, 2014 Author Share Posted October 14, 2014 the engine looks the same as this onewith a double oil pan Link to comment Share on other sites More sharing options...
jajolee Posted October 14, 2014 Author Share Posted October 14, 2014 I am sorry for the ohc mistakeI mean valve in head jan Link to comment Share on other sites More sharing options...
Layden B Posted October 14, 2014 Share Posted October 14, 2014 That engine was built 1939-1954 Link to comment Share on other sites More sharing options...
jajolee Posted October 15, 2014 Author Share Posted October 15, 2014 thank you verry muchjan Link to comment Share on other sites More sharing options...
jajolee Posted October 15, 2014 Author Share Posted October 15, 2014 can someone explain wy there is a extra oil pan under itis the engine for special use ?thanksjan Link to comment Share on other sites More sharing options...
rhb1999 Posted October 16, 2014 Share Posted October 16, 2014 can someone explain wy there is a extra oil pan under itis the engine for special use ?thanksjan It looks like an deep sump oil pan, designed to hold more oil. The engine could be from a military amphibious DUKW or CCKW 2.5 ton cargo truck. Link to comment Share on other sites More sharing options...
jajolee Posted October 18, 2014 Author Share Posted October 18, 2014 ThanksJan Link to comment Share on other sites More sharing options...
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