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Thread: My 5.3L into an 85 GMC swb 2wd swap

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  1. #1
    Join Date
    May 2009
    Location
    Wichita Falls, TX
    Posts
    883
    I'm reading the build thread. I'm trying to decide what to do for a/c, headers and wire harness still. I think I'll just notch the frame a little bit and run fbody headers. Your engine bay looks amazing you should do this for a living.
    2003 SIERRA- 5.3 DD
    1985 SWB C10- slow, future plans- shaved, painted, 6.0/4l80e

  2. #2
    Join Date
    Jul 2009
    Location
    Northern Colorado
    Posts
    69
    Quote Originally Posted by lowchevytrucks8503 View Post
    I'm reading the build thread. I'm trying to decide what to do for a/c, headers and wire harness still. I think I'll just notch the frame a little bit and run fbody headers. Your engine bay looks amazing you should do this for a living.
    Using the 5.3's own AC compressor is possible, but you will need to notch the frame and do a little boxing work. We determined also that a 99-02 truck compressor with a flat manifold will work too with no frame notching.

    I used the truck manifolds with only a little notching on the passenger side. I opted not to use f-body manifolds because, well.... they are ugly compared to the truck manifolds. At least the truck manifolds are a mirror image from side to side. Plus I plan on having the coated at JetHot, that should look sweet.

    After doing this, I realize that I could have done the harness myself, it's really straight forward. On the other hand, I am glad I had someone else do the first one so I could see first hand what is done. The next ones will be done by me. I had Hannah and Jesse at Wait4Me Performance rework the harness and do the initial "canned tune", that was $360 including return shipping.

    Thanks for the good words! But I don't think I have the patience to do these for a living. But if time wasn't an issue, I wouldn't mind doing a couple of these on the side.
    85 GMC Sierra Classic SWB
    5.3L / 4L60E / 3.42

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