+ Reply to Thread
Page 4 of 6 FirstFirst ... 2 3 4 5 6 LastLast
Results 31 to 40 of 55

Thread: 86 C10 6.0/4l80e swap

  1. #31
    Join Date
    May 2004
    Posts
    2,120
    Oh, I'd recommend pulling the gasket out and welding up the square flange. This is the worst flange I've seen when it comes to leaking. LOL Give it about a month...............but they do work.


    97 GMC, 2002 LS6.

    1991 GMC Syclone #1428

  2. #32
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    That modification makes it almost like a longtube header. Put a collector reducer at the end and it would almost be hard to tell the difference. Racers used different lengths of pipes off the end of the open headers to create more or less torque, I'm sure that modification will have the same effect.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  3. #33
    Join Date
    Oct 2005
    Location
    Baton Rouge, LA
    Posts
    997
    The thought of re-engineering my setup has been crossing my brain lately. Pushing the powertrain closer to the firewall would be better for front-end air flow (i think). Definitely works well with those headers (I like those!).

    Nice progress. Post many pics when possible. Love to see others similar to (and better than) my mild mod.
    Test-n-Tune (Nov 23, 2008) - 13.65s @ 98mph

  4. #34
    Join Date
    Aug 2006
    Posts
    192
    Still waiting on tuner to get his arse over here. D-Day was supposed to be Monday, now it looks like Wednesday. I hope so, cause exhaust guy said he could do it this week if I get it to him.
    Gotta burn those new bfg's off!
    86 C10 6.0/4l80e

  5. #35
    Join Date
    Aug 2006
    Posts
    192
    it's alive!
    Tuner came through for me.
    86 C10 6.0/4l80e

  6. #36
    Join Date
    Aug 2006
    Posts
    192

  7. #37
    Join Date
    Oct 2005
    Location
    Baton Rouge, LA
    Posts
    997
    Git -r Dun!!!
    Test-n-Tune (Nov 23, 2008) - 13.65s @ 98mph

  8. #38
    Join Date
    Apr 2008
    Location
    Monterrey Mexico
    Posts
    12
    matbe other people have asked the same thing, but I just started reading your post, first of all congratulation on your beautiful truck, it seems you have done a really good work on the engine swap harness etc. it is really nice, I have myself a 86 c-10 I just bought a 2000 vortec 6.0 to do the engine swap, I`ll like to know if you have any problem with the electronics, I mean the ignition key, or the sensors from the cats, or any issue that made the swap more difficult ?? I`ll apreciate your help, and again congratulation on your ride, it`ll burn those bf`s for sure
    Timo Cārdenas

    2008 Sierra Denali AWD 6.2 fully loaded "Magnacharger TVS1900, GT2/3 cam, American Racing Headers LTīs and a 3.0 or maybe 2.8 pulley comming soon

  9. #39
    Join Date
    Aug 2006
    Posts
    192
    no problems with key, I'm not running cats, rear 02's deleted.
    I am having a backfire issue right now, tuner says he will come over tomorrow and hopefully fix it so I can finally drive the thing!
    86 C10 6.0/4l80e

  10. #40
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Could it be a large vacuum leak such as the brake power booster fitting or just bad intake gaskets? Maybe the intake fitting for EGR or PCV?
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

+ Reply to Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts