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  1. Madhorn

    69 C10

    Picked up a 69 C10 this weekend to go along with my 77 K10. Yes it’s a long bed, I can live with that since it’s in good shape for a 69. I really like it’s patina, so a short bed conversion would end up ruining that. Not to mention, a long to short bed conversion can be pricey. It will need...
  2. Madhorn

    57 Chevy Truck Do Over

    I have a bit of history with this truck. I bought it 25 years ago as young Airman stationed in Tucson. I spent 5 years piecing it together with parts from local wrecking yards. Such as a 72 Camaro clip, 350/350, tilt, AC, PWR brakes and steering to name few things. In 2020 I sold the truck to my...
  3. Madhorn

    35 inch tire with 3.73 gear

    I am currently running a 5.3 with an NV 4500 OD trans into a 4.56 gear on 35 inch tries. In OD at 2k rpm my mph is 58. I am considering a gear swap to 3.73. Anyone running anything similar? My calculations say that at 2k rpm with the 3.73 my mph would close to 70.
  4. 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...
  5. Madhorn

    77 K10 5.3 NV4500 swap

    Well, here we go. Have the 5.3 apart for inspection. Everything looks good. Checked one main bearing and one rod bearing. They looked great and even got the thumbs up from my engine guy. So the bottom will be left alone. Will install a new oil pump, timing chain and lifters. As far as the top...
  6. Madhorn

    LS Swap Fuel Lines

    I have been researching different types and manufactures of fuel injection fuel line as well as connectors/hose ends. With the LS swap I am doing I need feed and return lines. Of course the Russell stuff is great, but expensive (~$325). The Dorman nylon fuel line and connectors are the cheapest...
  7. Madhorn

    PCM Help

    I am about to get started on an LS swap into my 77K10. I have acquired a 5.3 from a 2003 suburban and plan on having it rebuilt with a mild cam. Can anyone suggest reputable programmer who can not only flash the PCM but make the necessary adjustments for a cam change?
  8. Madhorn

    L59 Z code 5.3

    Found a good deal on a L59 5.3 from a 2003 Suburban with 177K miles. Runs great and does not smoke. Since it is a flex fuel engine, are there any pit falls to look out for when doing a conversion in to my 77 K10?
  9. Madhorn

    Edelbrock EFI Fuel Sump Kit

    I am considering an LS swap into my 77 half ton and saw this EFI pump lit on TV the other day. Has anyone tried one of these?

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