Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

Changing a V6 to a V8 in a '94 questions

Discussion in '1992-Present Chevy & GMC models' started by Sandman, Jan 30, 2003.

  1. Sandman

    Sandman 3/4 ton status Author

    Joined:
    Apr 15, 2002
    Posts:
    5,653
    Likes Received:
    0
    Location:
    Pocatello, ID
    Changing a V6 to a V8 in a \'94 questions

    Has anybody done this? We have the doner truck and was wondering if we could get away with like the wiring harness or what kind of surprises we might find. Thanks.
     
  2. 95 Silverado

    95 Silverado 1/2 ton status

    Joined:
    Nov 9, 2001
    Posts:
    467
    Likes Received:
    0
    Location:
    Central PA
    Re: Changing a V6 to a V8 in a \'94 questions

    What type of fuel system is on the donor truck? The '94 that you want to swap the engine into should have TBI. If the engine you are putting in it is the same system, the wiring harness will be the same, both engines use the same sensors. You should be able to swap the engine in, hook up the wiring, and swap the ECM from the V8 truck in. the ecm from the other truck will have been programmed for the transmission and gear ratio parameters that were in the donor truck, if these are different you may have to get a special chip to correct these settings.
     
  3. aahomerepair

    aahomerepair Registered Member

    Joined:
    Jan 31, 2003
    Posts:
    35
    Likes Received:
    0
    Location:
    Springfield,MO
    Re: Changing a V6 to a V8 in a \'94 questions

    as stated on the above post if the wiring and fuel system
    is the same and the drive line is diff.you won't need
    to get any special chips,use you oem ecm and just change
    both removeable chips and this will take care of it.
    did 350 swap on 88 astro van and spent alot of time
    trying to get it right and that is all it took to
    get the computer working right.after spending 500
    on computers and chips and it is one bad a$$ set-up
    sorry about that poeple some times i need /forums/images/graemlins/1zhelp.gif
     

Share This Page