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Thread: 383 vortec swap

  1. #1
    Potential Tuner
    Join Date
    Mar 2015
    Posts
    2

    383 vortec swap

    I'm slowly getting up to speed but wouldn't mind input or suggestions...

    5.7 stock vortec pickup swapped with 6.3 (383) vortec crate motor.

    Same intake. Upgraded spider injection system. 9.5 : 1 CR. Stock 3" single exhaust. 4L80-E transmission. C2500 pickup. Nothing special.

    I want to get rid of knock retard at 3400 - 4500 RPM.

    Also would like some suggestions to help it breath better above 4000 RPM.

    I've attached some files for you.
    Attached Files Attached Files