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  1. Timmy adkins

    Timmy adkins Junior Member

    Posts:
    19
    Likes Received:
    1
    Joined:
    Jan 15, 2020
    Location:
    Hinton
    First Name:
    Tim
    Truck Year:
    1979
    Truck Model:
    C10
    Engine Size:
    5.3
    I am swapping a 5.3 into my square body. The motor, ecu and harness are coming out of the same truck. Do I need to get the ecu flashed to get rid of the passlock (anti theft) system?


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  2. RoryH19

    RoryH19 Full Access Member

    Posts:
    1,152
    Likes Received:
    628
    Joined:
    Aug 21, 2015
    Location:
    Texas
    First Name:
    Rory
    Truck Year:
    1987, 1982, 1983
    Truck Model:
    R10 Silverado SWB, K5 Silverado Blazer, K5 Silverado Blazer
    Engine Size:
    350 TBI, LS Swap 6.0, 350 carb
    Yes, VATS has to be removed from the ECU.
    You also need to program your axle ratio and tire size.
     
  3. Timmy adkins

    Timmy adkins Junior Member

    Posts:
    19
    Likes Received:
    1
    Joined:
    Jan 15, 2020
    Location:
    Hinton
    First Name:
    Tim
    Truck Year:
    1979
    Truck Model:
    C10
    Engine Size:
    5.3
    Thank you! Answered my question


    Sent from my iPhone using Tapatalk
     

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