Recent content by legend57

  1. legend57

    1977 K20 Heavy Duty Emissions

    Hey Johnny. Congratulations on the K20. I got my '76 K20 about 3 years ago and have been going through restoration. I'm in the same boat with the smog. My truck didn't have any of the original equipment, so I slowly reconstructed it. It actually wasn't too bad. Here is what I learned for...
  2. legend57

    All time 4x4 / NP203 Truck Questions, hard to make tight turns

    Interestingly, my shifter has a provision for a switch, but nothing was installed. Maybe an option(?). I can't say for sure my shifter is original to my truck, as many things had been changed, but it does look like the NP203 shifter, at some point, had a switch as an option.
  3. legend57

    All time 4x4 / NP203 Truck Questions, hard to make tight turns

    Before doing any major swaps, I'd encourage you to go through the shifter mechanism. I believe the NP203 gets a bad rap (at least partially) because of the shifter. When set up well, it works well. But if it is dirty or was reassembled incorrectly, it is terrible. I went through mine and it...
  4. legend57

    73-79 Side Trim Measurements

    Anyone willing to take some measurements of their side trim? The top row is pretty easy because it follows the body line. The lower line, between the wheels is a bit more difficult. My truck has the gas doors (an '80 bed), and I am using that to space the bottom row of trim based on pictures...
  5. legend57

    Engine Build

    I've used the Powermaster (#9612) starter for many years. Very reliable and have adjustable clocking for header clearance. Their alternators are really good, as well.
  6. legend57

    Chuck’s engine build thread!

    Did the machine shop remove the threaded plugs in the back of the block near the cam journal before hot tanking? If not, it may be worthwhile to check to make sure there isn't sludge build up inside. Easiest to check now. I've heard not all shops remove them when cleaning. Overall, looking...
  7. legend57

    87' 350 SBC Rebuild

    In '87, the bottom end was good and stout with the 4-bolt caps. The top end was terrible, mostly for smog reasons and economy. The result was a meager 210hp and 300lb-ft of torque. With a few minor modifications, it is easy to increase both by ~100 points, without losing low end performance...
  8. legend57

    I need a Holley Sniper 2 expert

    If you haven't purchased the CAN to USB adapter cable, I would recommend it. It allows you to connect to a PC. I've found that even with these "self-learning" systems, a PC is still necessary. The graphs and tables also makes visualization easier to make sure you have smooth profiles. Note...
  9. legend57

    Quadrajet

    California Emissions: https://nationalcarburetors.com/Chevrolet-GMC-Truck-1985-1987-454-74L-California-Emissions-Rochester-M4ME-_p_1486.html Federal Emissions: https://nationalcarburetors.com/Chevrolet-GMC-Truck-1985-1990-454-74L-Federal-Emissions-Rochester-M4MEF_p_1488.html
  10. legend57

    Replacing The Quadrajet

    I'm very happy with the National Carburetor Q-Jet I got for my '76 400. That thing starts faster than my fuel injected cars. I do have an electric fuel pump hooked up, so that helps, but overall, I'm very happy with the Q-jet's performance.
  11. legend57

    Stalls under acceleration

    I agree with Sad Sack's recommendations. I recommend you invest in a few tools before investing in parts. * Get a fuel pressure gauge and plumb it between the pump and the carb. It should be between 4-6psi and not move much. (~$50) * Get a timing light with an advance function. Check initial...
  12. legend57

    USA1 Industries

    You got lucky. The interior kit for my '76 K20 took about 2 years before I got everything. I think the dash pad was the last item. The door panels were cancelled because they stopped selling the full door panel kit for the '76. I ended up buying the individual pieces. A bit of a pain as you...
  13. legend57

    Electric fuel pump

    It is mounted on the frame on the passenger side, just after selector valve. I installed 100um filters on each fuel line before the selector valve and then a 20um filter after the fuel pump. I can't recall the part numbers, but I can get them. Since the exhaust routes through that area where...
  14. legend57

    K10 1983 700r4 installation help needed

    When removed my T350/NP203 and then installed my 700R4/NP203 combo, I used this motorcycle jack from Harbor Freight. By placing the T-Case adapter between the two lift extensions (shown in the pic), it balanced perfectly. The lift extensions supported the trans pan and the T-Case so there...
  15. legend57

    Struggling with my 700R4

    Yea, I probably should have gone with a 4L60E (early 1 piece case model). I'm not 100% sure it is the trans. Could be something odd with the T-case. I'm going to do the line pressure testing and I'll report back.
See more

Latest posts

Forum statistics

Threads
48,666
Posts
1,074,187
Members
43,338
Latest member
hauto85
Top