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Relentless70

1st Gen Cummins Exhaust Port Diameter

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Can anybody give me the height and width of the 1st gen Cummins exhaust port? I'm using an app called Performance Trends Engine Analyzer Pro v3.3(great program, BTW), and I'm trying to dial in some different variables into the program. Any help would be appreciated :).

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exhaust port is 1.125" wide by 1.625" tall (1 1/8" X 1 5/8"... 28mm X 41mm) saw this post a while ago and finally got some time to pull the head, doing a head gasket... if you need anything else measured let me know now before i throw it back together

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