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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.


2,739 topics in this forum

  1. 2014 Sierra Denali 6.2 with Corsa Sport catback

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  2. Oil Pressure? 1 2

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  3. Supercharged 5.3

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  4. Loss of power 1 2 3 4

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  5. 5.3 versus 6.2 1 2 3 4 13

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  6. L86 6.2 "E85 Max"

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  7. Trans Temp ?????? 1 2

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  8. E85 use

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