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B-Model Engine Data from oldmacksrus.com
Posted November 14, 2008
I can help a little with the Cummins numbers
NH= 4valve's per clynder NON turbo
NT= 4valves per clynder Turbo
NTC= 4valves/turbo/custom rated
Sorry I can't be of more help, but that's all I know.
Posted August 1, 2010
I think I'm right on this the NH had the fuel lines on the outside and was a line and nozzle engine. And the NT hat the PT system and cam opened injectors
Posted December 27, 2012
I have a NH-230 and a NH-250 with PT pump and cam operated injectors, and NTC-290 and NTC-400 with the same PT pump and injectors.
Posted July 12, 2015
ALL CUMMINS ENGINES FROM THE 185 THRU 380 HAD CAM ACTUATED INJECTORS THE 185S AND 220S JUST HAD EXTERNAL FUEL LINES
Posted April 19, 2016
Is anyone else having trouble reading this content? oldmacksrus.com is no longer a viable website and I would like to see engine horsepower numbers to compare a b87 vs a b61
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