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Engines & Drivetrain

Tech for the 5.3L (L83), 6.2L (L86), and 4.3L V6. Tuning and 6L80 / 8L90 transmission support.


2,741 topics in this forum

  1. Exhaust Tips

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  2. Builder wants meth 1 2

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  3. True Dual exhuast

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  4. Header question

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  5. spark plugs and wires 1 2

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  6. Flapper valve question

    • 2 replies
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