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1st Gen Cummins Exhaust Port Diameter


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  • 10 months later...

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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