jimmygreek Posted June 23, 2015 Share Posted June 23, 2015 Does anyone know how to tell the difference between a 335 and a 290 if there are no tags on it? Thanks Jim Quote Link to comment https://www.bigmacktrucks.com/topic/40622-cummins-335/ Share on other sites More sharing options...
theakerstwo Posted June 24, 2015 Share Posted June 24, 2015 The 290 will have a suitcase style water pump and blunt nose crank.Six bolts holding the dampener direct to the crank.the 335 will have a taper nose crank with a hub on the crank and the dampner bolted to the hub.If you will give me the stamped engine # from the left side of the block I may can tell you what it is. 1 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/40622-cummins-335/#findComment-294453 Share on other sites More sharing options...
b615rich Posted June 24, 2015 Share Posted June 24, 2015 The numbers are stamped on the left side of the engine block, right below the head. Quote Link to comment https://www.bigmacktrucks.com/topic/40622-cummins-335/#findComment-294459 Share on other sites More sharing options...
jimmygreek Posted June 25, 2015 Author Share Posted June 25, 2015 I'm going to see the truck in about three weeks . {1200 miles away} I'll let you know . Thank you. Quote Link to comment https://www.bigmacktrucks.com/topic/40622-cummins-335/#findComment-294647 Share on other sites More sharing options...
jimmygreek Posted July 14, 2015 Author Share Posted July 14, 2015 I did see the truck, The serial # is 10339687 and it has a VT 50 turbo. I could not read other numbers on turbo, should have gotten a magnifying glass. It has a pancake water pump. Thanks, Jim Quote Link to comment https://www.bigmacktrucks.com/topic/40622-cummins-335/#findComment-296639 Share on other sites More sharing options...
theakerstwo Posted July 15, 2015 Share Posted July 15, 2015 I can not copy and paste on here but its a 1973 NTC290 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/40622-cummins-335/#findComment-296694 Share on other sites More sharing options...
jimmygreek Posted July 15, 2015 Author Share Posted July 15, 2015 Just to be sure, it does not have a suitcase water pump like you said, Is the pancake pump interchangeable? It has two belts and an idler pulley. i could not check the front of crankshaft. Could have someone made a 335 out of this block? There was no tag under fuel pump bolts. I just want know what I am buying. Thanks again, Jim Quote Link to comment https://www.bigmacktrucks.com/topic/40622-cummins-335/#findComment-296739 Share on other sites More sharing options...
theakerstwo Posted July 15, 2015 Share Posted July 15, 2015 Same block and the water pump can be used on both engines. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/40622-cummins-335/#findComment-296767 Share on other sites More sharing options...
b61mack Posted July 16, 2015 Share Posted July 16, 2015 Does it have a little tag on the fuel pump around the tach drive or is that the tag you were talking about. Quote Link to comment https://www.bigmacktrucks.com/topic/40622-cummins-335/#findComment-296790 Share on other sites More sharing options...
jimmygreek Posted July 16, 2015 Author Share Posted July 16, 2015 Can't find any tag on fuel pump. Quote Link to comment https://www.bigmacktrucks.com/topic/40622-cummins-335/#findComment-296823 Share on other sites More sharing options...
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