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  1. Madhorn

    77 K10 LS Swap

    With some help from my boys we got quite a bit accomplished today. Front clip installed Bled the brakes Mounted the computer Ran the wiring for the lights and wiper motor Installed radiator Radiator fan and shroud Upper and lower hoses
  2. Madhorn

    77 K10 LS Swap

    A couple more pics. PS header clears front shaft with room to spare.
  3. Madhorn

    77 K10 LS Swap

    Tomorrow I will install the front shaft and get a couple pisc. Are the K5s that mush different than the K10?
  4. Madhorn

    77 K10 LS Swap

    They fit great!!!! The only mod was I had to cut a small ear off the bell housing. Cleared the manual clutch linkage with out issue and no issue with front drive shaft. O2 sensors fit great as well.
  5. Madhorn

    77 K10 LS Swap

    Headers arrived today!!! They look great. I may get a chance tomorrow after work to try and install and check clearances.
  6. Madhorn

    77 K10 LS Swap

    Camar068: Thanks for the advice. I have already welded in a patch panel and braces for steering box cracks. It was the perfect time to do it. BTW, I took a chance and ordered a set of Speed Engineering long tube headers (25-1025) along with a set of there spark plug wires (26-1002)...
  7. Madhorn

    77 K10 LS Swap

    Engine wiring harness installed. Ready to install front clip. I have a line on some exhaust manifolds from a C5 vette, confident they work. But I just leaned that if they do not have the flanges, its around $150 for flanges with 6 inches worth of pipe. Not cool! Still may end up using...
  8. Madhorn

    77 K10 LS Swap

    Yukon fired right up this morning, everything looks good so far. Can tell the tune needs a little tweaking but other than that so far so good. Back to the 77!!
  9. Madhorn

    77 K10 LS Swap

    Yukon just received an AFM delete kit from Texas Speed. Cam, lifters, springs and phaser kit, should add 50hp. Also needs a tune, so I picked up a Diablo I3 from Diablew. Will tune and fire it up in the morning. As far as the 77 goes, I think I am going to use the stainless ram horn shorties.
  10. Madhorn

    77 K10 LS Swap

    Just received my PCM back from Brendan at LT1Swap. About a week and a half turn time, not bad. I hope to get back to work on the 77 soon. Currently I am in the middle of performing an AFM delete on my wife's 2015 Yukon, it dropped a lifter last week at 105K miles. Of course its out of...
  11. Madhorn

    77 K10 LS Swap

    This this the e-mail I sent to Speed Engineering. I am working on a 77 Chevy K10 with a 5.3/nv4500/np205. I am interested in your long tube headers 25-1025. Will clear they manual clutch linkage?? Also, if that does not work is it possible to purchase a passenger side header from 25-1021 and...
  12. Madhorn

    77 K10 LS Swap

    Just send Speed Eng another email. Wish they had a phone number available
  13. Madhorn

    77 K10 LS Swap

    Oh man that looks like fun. I was just looking the Speed ENG site again. Wonder if they would mix a set of headers? For example: Passenger side header from 25-1021 and a drivers side from 25-1039.
  14. Madhorn

    77 K10 LS Swap

    A 97 to 2000 Corvette should work. Not sure about the Camaro, have heard they work fine with auto trans and standards with hydraulic clutch. Here are some pics of the stock drivers side 5.3 manifold.
  15. Madhorn

    77 K10 LS Swap

    Crispy: Thanks for the link. In that application they are using a 4L80 trans. I am trying to use an NV4500 with manual clutch linkage. The clutch linkage is my clearance problem. The drivers side rear exhaust tube must exit the head an turn straight down for at least 15 inches to clear the...
  16. Madhorn

    77 K10 LS Swap

    As far as exhaust goes. I think I will end up using the Schoenfeld long tube header 1302ls1 since I have seen where they worked for others doing the same project. The Speed ENG header 25-1025 looks like it will work but no one can say that it will.
  17. Madhorn

    77 K10 LS Swap

    dvdswan: I ended up putting a couple bends in the handle. Also had to relocate the eyelet on the bottom down 1 inch and in towards the trans 1/2 inch.
  18. Madhorn

    77 K10 LS Swap

    Crispy, Just looked at the Speed Engineering headers. They look like they will work. I will call them Monday and ask, two sets I looked at 25-1025 and 25-1026 both had a note that said will not fit 4x4. Thanks for the info.
  19. Madhorn

    77 K10 LS Swap

    Made some modifications to the trans tunnel today. Also had to make a couple mods to the transfer case shift handle.
  20. Madhorn

    77 K10 LS Swap

    After some internet research I think I have found 3 possibilities. Two from Patriot (H8076 and H8014), then one from Schoenfeld (1302LS1). Both Patriot headers are shorties and the Schoenfeld is a long tube header. At this point I think the Schoenfeld is the best option, I did see one post...
  21. Madhorn

    77 K10 LS Swap

    This is where I am today, a year into this project. Once it was torn down and cab gutted, it needed floor pans and many patches in the fire wall and a lot of cleaning. All new wiring harness from American Auto Wire, dash and heater/AC boxes refurbished. There have been so many little things...
  22. Madhorn

    77 K10 LS Swap

    I am currently in the midst of a 5.3 swap into my 77 K10. The 5.3 is mated to a NV4500 trans and NP205 transfer case using Advance Adapters along with a manual clutch linkage/pedal. Here is the problem, the stock 5.3 drivers side exhaust manifold points directly at the clutch Zbar/linkage...
  23. Madhorn

    77 K10 5.3 NV4500 swap

    Thanks for the reply. You have confirmed my suspicions. C1 35 is not needed since I am not going use cruise control. The Clutch start S/W is optional at this point. My donor vehicle was a 2003 suburban, I did get to hear it run and acquired the 5.3 L59 and harness for $700. Did not get the...
  24. Madhorn

    77 K10 5.3 NV4500 swap

    The harness rework is going well. I do need to point out, that if you are doing this your self, be patient. Also, be sure to remove all the harness covering and tape. I found a broken pink power wire going to the MAF sensor. I have since verified every line in the harness with my digital meter.
  25. Madhorn

    77 K10 5.3 NV4500 swap

    Tried to post a pic to my last message. I must have missed something in the process. Any pointers?

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