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  1. 1987 GMC Jimmy

    gm big block v6?

    There are some videos on YouTube, but they only made 5000 so the pickings are slim.
  2. 1987 GMC Jimmy

    gm big block v6?

    Don’t forget the 702 Twin Six. Not exactly the same thing, but it looks like they got two of them and put them together.
  3. 1987 GMC Jimmy

    A knock, maybe?

    Same line of thinking. I’d pull the flexplate cover and check for backed out bolts between the plate and the TC. Also cracks in the flexplate. If you have a vacuum cleaner, you can wrap a rag around the hose, stuff it in the tailpipe where it seals good, and listen for a sucking sound around the...
  4. 1987 GMC Jimmy

    Strange brake dragging problem

    Only thing I’ve used of theirs is a Raybestos new production master cylinder, and it’s been GTG!
  5. 1987 GMC Jimmy

    Adjusting new hydraulic lifters 92 5.7

    Make sure you’ve got the assembly lube liberally slathered on there!
  6. 1987 GMC Jimmy

    Strange brake dragging problem

    Maybe the drum’s severely out of balance, and that’s why it spins fine, but you can’t replicate the speed necessary to make it show up. Are the weights still on there?
  7. 1987 GMC Jimmy

    1979 Paint Codes

    https://paintref.com/cgi-bin/colorcodedisplaym.cgi?year=1979&make=Chevrolet&model=Chevy+Truck&color=All&action=Get+Paint+Codes
  8. 1987 GMC Jimmy

    unjunking the quadrajunk

    You’re thinking about Quadrajet Power. I think he charges about $200 plus shipping for a standard rebuild. I used Mountain Man, and they were $200 plus shipping.
  9. 1987 GMC Jimmy

    unjunking the quadrajunk

    Yeah, whoever told you Holley was bad is an idiot. They’ve been making carburetors for about 120 years so I think they’ve had plenty of practice. Same thing for other Holley/Weiand performance parts. I would say the same in principle for Edelbrock intakes, but they’re just building Carter...
  10. 1987 GMC Jimmy

    TBI pods are leaking!

    The picture on RockAuto leads me to assume they’re remanufacturing whoever made them originally, I’m guessing Rochester Product Division, Delphi, or both. That new production one fits in the injector housing perfectly, the external dimensions are identical to the OE unit, and it doesn’t leak out...
  11. 1987 GMC Jimmy

    unjunking the quadrajunk

    Unless the carburetor body is warped from improper or overtorquing, there’s nothing wrong with the carb. It sounds a little bit like heat soak induced fuel boiling/vapor lock, although more information would be needed to draw that conclusion, so a return style pump with return senders would help...
  12. 1987 GMC Jimmy

    TBI pods are leaking!

    I lost an injector and the pickup coil partially whenever my ICM blew and tried to go the cheaper route. It was still a new injector, Standard Motor Products PN# TJ7, but not at the Delco premium price point. Big mistake, the design is garbage. The nozzle sits up inside a conical recess of the...
  13. 1987 GMC Jimmy

    What's a 93 Chevy 4x4 Stepside short box worth ?

    Location, location. Rust free would probably make it worth more there, and pics would help, but in the humid Sunbelt, I’d say above average around 2500 to 3000 max for a really pristine example. GMT400s don’t really rust here, they’re quite common, and you can pick up an old beater running or...
  14. 1987 GMC Jimmy

    TBI pods are leaking!

    I’ve found that only GM (Delco) injectors work right because of the nozzle design. If you have an injector like say a Standard Motor Product, the showerhead style nozzle will spray into the pod, and it’ll half spray and half drip around the edges. Are you lubing the o-rings with petroleum jelly...
  15. 1987 GMC Jimmy

    Shout out from Brandon, MS

    Welcome from Wesson! Glad to see more Mississippi people lately.
  16. 1987 GMC Jimmy

    1981 c10 250 i6 not running

    The first thing I’d do is check that you’re getting good fuel from the pump. You can eyeball test it volumetrically by feeding the pump via a fuel can into a bottle to see it pump or send it to the carb to see if it runs better. You can also pressure test it, which is the more precise option...
  17. 1987 GMC Jimmy

    208 the same as 203 or 205

    If this is feasible for you, I endorse that idea. They’re good, reliable transmissions, and I don’t think I could do more than short jaunts with that three speed. The Jimmy’s got a 700 w/ 3.42 gears, and it’s a babe on the interstate. Unless you already had it to work with like in your case...
  18. 1987 GMC Jimmy

    Lens for clock cluster

    I had one laying around with the lower clock hole and a rubber grommet around it. It had an ear or two broken, but if I can find it, I’ll send it to you. Hopefully someone didn’t throw it away.
  19. 1987 GMC Jimmy

    Sad day... Sold the truck

    That’s too bad! Stick around, it’s sad when people leave.
  20. 1987 GMC Jimmy

    Air horn came in yesterday

    The horn wire’s green and would normally run to the core support. Is there nothing there on yours? That’s what will go to the blue wire and therefore the no. 85 relay pin to act as the signal.
  21. 1987 GMC Jimmy

    84 k10 silverado engine decisions

    Even with the turbo, you might be disappointed with the power. You can improve it, but I’d see if I could drive a turbo 6.2/6.5, and if you don’t like it, you have your answer. It’s gonna be dead simple, and the torque is not horrible, but I’d expect the peak horsepower as it is now to be...
  22. 1987 GMC Jimmy

    Hi Back seats

    Modified. Blazers don’t have saddle tanks so no floor hump, and the seats sit high up rather than close to the floor. Wouldn’t be hard to fab something up, though.
  23. 1987 GMC Jimmy

    5.7 TBI Advice Needed

    I also thought 18 was too high, at least for an average, a tad high for highway. I meant to mention that, but I’m not feeling so hot the past few days. I’d do an IACV relearn, and IAC counts would be good to know. It likely doesn’t need too much to run properly, but I can’t stress the value of...
  24. 1987 GMC Jimmy

    1974 GMC 1/2 ton 2 wheel drive 4 speed suburban

    Wow... If I had just one of these, I’d think I died and went to heaven. Especially that Burb. If that’s mostly OEM, wow. If that’s a resto, very tastefully done and couldn’t have done it better myself.
  25. 1987 GMC Jimmy

    5.7 TBI Advice Needed

    I don’t think the 360 c^3 displacement is going to need updated injectors to adequately feed the motor versus when it was a 350. They can become dirty over time, and you can always have them flow tested, cleaned, whatever by someone who does that (e.g. WitchHunter Performance). There’s a buzz...

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