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04 4.2 engine into a 06
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  1. Engine Tunes/Mods
    New member with a question: My 2006 Trailblazer 4.2 is knocking a rod pretty hard and I'm finding it hard to find a reasonably priced engine from 06 or 07. A local independent shop has an 04 4.2 engine for a reasonable price installed. He told me it will fit just fine and that he has done the...
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