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1st Gen Cummins Exhaust Port Diameter

Relentless70

By Relentless70
in 1st Generation Dodge

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Relentless70

Relentless70

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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 :).

  • 10 months later...
jordan

jordan

Posted
Posted

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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