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  1. Hunter79764

    700R4 to 4L80E in my 87 Chevy Blazer

    This is an option if you just need it working? https://ck5.com/forums/resources/how-to-wire-a-4l80e-transmission-for-manual-shifting-without-a-controller.85/
  2. Hunter79764

    truck runs hot

    Stupid question, but are you sure your gauge is right? Double checked with a known good one somehow?
  3. Hunter79764

    Continuous TBI problems

    I'm a big fan of Sea Foam if you think you might have injector issues. Clean them up and see if that fixes anything before you pull too much hair out.
  4. Hunter79764

    1985 Chevy suburban four-speed manual what LS engine should I use?

    I'd say a 4.8 would leave you underwhelmed for the work, a 5.3 would be a nice pick-up from the stock engine, and a 6.0 would give it good feel but start to impact MPG's if that is a concern, although I don't think any of those would get you lower than stock MPG's. As far as ease of fixing and...
  5. Hunter79764

    1983 454 vs 5.3 LS for towing

    I'm a big fan of LS's, but they do have limits. You are probably better off with the 454 unless you just want something different. And if you do, that's your call, no need to justify to us :) For some information, this was a pretty good comparison of the various LS engines and a 454, granted...
  6. Hunter79764

    I'm at a loss..

    An old coworker used to say "If you find yourself beating your head against the wall too long, you might think whether you are beating on the right wall". I've tried to follow everything here, but I've got a couple questions. Seems like the problem doesn't follow drums, new, old, cut, not, all...
  7. Hunter79764

    TH350 5 neutrals (delayed shifting/won't go into gear)

    I've got a TH350 in another vehicle that did/does something similar. Does it go into gear better if the RPM's are higher?
  8. Hunter79764

    What size is my fuel tank?

    Being EFI, they really need to have some fuel in them for best pump life, and I suspect GM's rating of tanks was a little more conservative on the early EFI to account for it. I went the opposite direction from SquareRoot on my wife's daily. She liked to run it lower than it should, to the...
  9. Hunter79764

    What size is my fuel tank?

    FWIW, my 87 3/4T base model at best has a 31 gallon, but I think it's a 25. Rock auto has all 3 options as replacements. I haven't run it dry completely to test, but the most I've put in was about 22 gallons or so. Based on dimensions on Rock Auto, the 25 gal is 10.75" tall x 28x28, the 31 is...
  10. Hunter79764

    Improve 1/8 mile et

    Still think gears would be the "right" choice given what you said on RPM etc, but may take a hit on other stuff like highway cruise or general drivability for how you drive it. But yeah, some small jets you should be able to tune to get what you want. Do an RPM based trip maybe, that gives you...
  11. Hunter79764

    Radiator, Thermostat, Water Pump Issue (78 C10/Big 10 w/Vortec 5.3)

    Make sure your air is out, going from warm to overtemp that quick sounds like air pockets to me. On the 5.3, do you have the crossover tube/steam vent line? Disconnect that, and fill the upper radiator hose until it comes out the steam line. Then reconnect the upper hose and top off the surge...
  12. Hunter79764

    Improve 1/8 mile et

    Gears and/or tires for consistent traction would be helpful towards your goal, I'd guess. Any rule restrictions on nitrous? might be able to tune your tenth's gains with that.
  13. Hunter79764

    More horsepower

    I'm interested, but have no input. I imagine there's a chunk more like me. I've got a similar rig, and a similar desire for more power (like most of us), and a similar need to focus on minimizing cost. My plan has been to swap in a 6.0 that I have in a donor truck, but I'm possibly going to...
  14. Hunter79764

    4L60 limitations

    If you are running EFI, run the 4L60e and have it rebuilt/upgraded to the 4L65/4L70 specs. Doing the TV cable on a 5.3 will offset any savings you might have otherwise. If you are doing a carb (and you should only do a carb if you really want to, it will cost the same or more and generally make...
  15. Hunter79764

    K20 pulling 19k lbs...

    Hey, we've all got plans, goals, and dreams. Sometimes it takes a bit to figure out which is which. My 6.0 swap, which is totally doable, been done a thousand times, and I've done similar already is starting to look more like a goal than a plan for various reasons. My dream of turbo'ing the 4.3...
  16. Hunter79764

    K20 pulling 19k lbs...

    I'd be less worried about turning the frame into a taco immediately with 2800 on a 5th hitch, but if you do it very much for very long, things like shock mounts, spring eyes, sway bar mounts, air bags, etc all will take a pounding that they never were meant to take with 2 tons on top while...
  17. Hunter79764

    K20 pulling 19k lbs...

    I think Hp/Torque is really about the least concern. You can tow that much weight with a 235 straight 6, as long as you have the gearing. But you can't put a 5000 pound trailer with 500 lb tongue weight on an S10. even if you put a 14 bolt under it, there's just not enough frame strength...
  18. Hunter79764

    K20 pulling 19k lbs...

    I think if you were to do it, you would need a later model 1 ton running gear (8.1l or duramax) and plenty of frame strengthening, and probably a 14 bolt FF rear and DRW conversion. At that point, you could buy either of those Kodiak's posted earlier (man, that square looks awesome o_O) and fix...
  19. Hunter79764

    Movie filming in OKC next week needs old trucks

    I got to be an extra in the Friday Night Lights movie, which was based on and filmed in my hometown. All the game scenes were filmed at night, so you could go a little before sunset, they would dress you if needed (I had to wear a band uniform from the other high school, others had to trade in...
  20. Hunter79764

    Movie filming in OKC next week needs old trucks

    If I could just get my "stationary" trucks to Oklahoma I might be in pretty good shape! I've got a few that fit the bill.
  21. Hunter79764

    Homemade and modified tool thread

    I get everything from Amazon... Something like this might be easiest. If you wanted a mini project, you can get the bare LED's and a handful of resistors and make a Christmas Tree style light that shows you if you have 4v, 9v, 12v or 14v (I'm just throwing out some levels that might be useful)...
  22. Hunter79764

    No fuel pressure

    Good deal! Yep, those connections inside the fuse block can be tricky. You can probe them and they seem fine, but you install the relay and it just isn't making contact. A guy on another forum went through similar hassles with his fuel pump that actually ended up being the same thing, bad relay...
  23. Hunter79764

    No fuel pressure

    Sounds like you have a signal issue. Backtrack from there and see what you find. And yep, current checks with multimeter get scary sometimes. Easier to just look at voltage as an indicator of current, either voltmeter or just wiring in a headlight instead like Rick suggested. Same idea...
  24. Hunter79764

    Fuel Pump Whining?

    Remove your cap, blow air into the return line, and see what happens. If you have a return line clog, your pump will be working much harder. Fuel pressure would go up, but your ECM might adjust for it easily and not throw a code. Try the return line purge and see what that does, but if your fuel...
  25. Hunter79764

    No fuel pressure

    Think of electricity like hydraulics. If you have a (mostly) plugged hose, you will see 1000 psi on both sides of it, until you try to move any fluid then pressure drops to nothing on the downstream side. With the pump unplugged, you have "pressure"/12v, but with the pump connected as a flow...

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