Recent content by 85K304SPD

  1. 85K304SPD

    Odd delay going into gear

    Filter?
  2. 85K304SPD

    Cooling Questions and Concerns

    The factory GM serpentine systems('88-90 ish) that I am currently using on my Big block and my small block require reverse rotation water pump, fan clutch, & fan blade. The reverse rotation water pump will not have the mount for the power steering pump that the standard rotation has, the blade...
  3. 85K304SPD

    Intake plenum gaskets

    They are going to work on the carburetor now. Not going to change the intake gaskets. We were discussing reusing the carburetor base gasket. Just to clarify @mucanuc01
  4. 85K304SPD

    Intake plenum gaskets

    You may need a new gasket. A new gasket is always better, but if the one that is on there isn't torn or damaged it may work fine.
  5. 85K304SPD

    gm nv4500

    Following... My '85 K30 has 465/205. Overdrive would be awesome!!
  6. 85K304SPD

    Intake plenum gaskets

    Yes, take the carburetor off of the truck before taking it apart. Take a few pictures of the linkages and get a magnet to catch the clips and screws when you take them out.
  7. 85K304SPD

    Intake plenum gaskets

    That looks like what you need, as long as it is the correct one for your carburetor number. It sounds like your fuel pump and lines are probably fine. 6 ounces in 10 seconds is like 67 gallons an hour. I dont think you could burn that much, even with a big load of hay on back.
  8. 85K304SPD

    Mr. Gasket Headers

    Pre internet probably. Not that I know about them specifically, but what info are you looking for? Show us a picture of them.
  9. 85K304SPD

    Intake plenum gaskets

    That is the problem. Your accelerator pump is not working. The plunger is probably torn or hard or something. The top needs to come off of the carburetor to put a new accelerator pump plunger in it. While it is off and open, it can be cleaned out and sprayed out with carb cleaner. You will...
  10. 85K304SPD

    86 k5 long tube headers

    Hedmans, Hookers. I have a couple of sets that work on my 4 speed truck. I will look and see if they are marked with a brand name or anything. What did the mechanic say didn't fit about them.
  11. 85K304SPD

    Intake plenum gaskets

    Cold starting would be more about the choke adjustment and pump shot. If it starts with a primer of gas down the carburetor, that would indicate that it is not getting enough gas. I am thinking it is the accelerator pump plunger, or nozzle is clogged up. That would explain the slow acceleration...
  12. 85K304SPD

    Intake plenum gaskets

    Nice looking old truck. Did you replace the little fuel filter in the carburetor? All of that sounds like a carburetor problem. Maybe it needs cleaned up again. I can't think of how new intake manifold gaskets will help that problem.
  13. 85K304SPD

    Intake plenum gaskets

    Show us some pictures of your K20 and the 400, please. We can probably "practically fix it" (everything but the work) with a little more info. Then you can go to your mechanic and tell them what you want done and why.
  14. 85K304SPD

    Finding Serpentine Belt Lengths

    I just went through this. Trial and error. A few MMs makes a big difference. Take the belt that you have, and the measurement you make with the measuring tape, and try to figure out which one you need, see what the parts store has in stock and get the closest one and go try it out. If its the...
  15. 85K304SPD

    Sanderson BB8-P headers on a 454 in a crew cab dually

    I've got a set of those headers on my SHOP FLOOR. I don't think that they will fit on anything, but the break in stand. (I fell for it too) I just used the stock manifolds, and they work great. No burnt plug wires, header leaks, etc...
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