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    Seeking 383 propane engine build advice

    The reasons for the build are strait forward. Energy security and options. There is a war going on. Everytime the FED raises rates to fight inflation OPEC cuts production. Russia and China have officially unified and Broke the US dollars hegemony internationally with 16 more nations...
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    Seeking 383 propane engine build advice

    Engine should be done this month. Talking with him he mentioned this whole build is based off the specs of Pepsi's 427's and 454. His experience working on them and examining what worked and what didn't. Quotes below. I also mentioned it to the founder of carb and turbo David. He's been...
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    Seeking 383 propane engine build advice

    It'll either be a 8789-6M Autotronic super fix or a GM-2 box that does the same for the dual fuel.
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    Seeking 383 propane engine build advice

    I'd be content with those numbers 5 and 9 would be great, but still all in the wheel house considering.
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    Seeking 383 propane engine build advice

    Any recommendations on suspension for this? Thinking Tiberons anyway, but haven't even looked into it yet
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    Seeking 383 propane engine build advice

    I am still learning and posted here to learn more. The factory rated per mile on the '93 suburban unleaded is ~14 gallon. Not great fuel optimization on the TBI design. I believe it was tbichips.com that was recommended here and planning to have him do the final tune and chip burn after Dyno...
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    Seeking 383 propane engine build advice

    @TBItoy enjoyed your input here. He did resolve my question about accomplishing best efficiency through quench rather than compression with life of the engine being priority. He broke down what is being accomplished with the selection of marine and industrial components and machiningto perform...
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    Seeking 383 propane engine build advice

    I met with the engine builder with more pointed question on why we aren't going with the higher compression that seams more efficient for propane in rock crawling. He said we are accomplishing comparable efficiency and power through quench factor coming to .045" with the d dish pistons in the...
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    Seeking 383 propane engine build advice

    Here is the work order as it stands. Thank you @extremetownie. That is inline with my understanding as well. It seams that propane becomes more efficient at the higher compression. Going with stock compression under 10 sounds like it is not optimizing the propane unless there is something...
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    IMG_20220919_095836892.jpg

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    IMG_20220919_095853320.jpg

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    IMG_20220919_095842228.jpg

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    IMG_20220919_095858940.jpg

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    Seeking 383 propane engine build advice

    I just joined the forum here to learn more after finding folks here seam to have a lot of knowledge and experience running SBC on propane. The project I picked up is an old '93 2500 Suburban municipal fleet vehicle in great shape. Planning for travel, tow and some overlanding. It was bought...
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    138.jpeg

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