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Thread: 98 OBS ecsb 5.3ls swap

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  1. #2

    Let the madness begin.

    Here are some more pics of engine. 08 5.3. This engine is supposed to be
    a high output 5.3. Aluminum block, "243" heads, big valves. 100k miles
    bought the engine for $800. Also got a 4l80e with about 1500 miles on it for
    $800.

    I've built a engine run stand that I am going to run it on before I put it in the truck.
    Still need to tweak the stand a little, put gauges in it, battery holder, etc.
    Attached Images

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