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  1. Blue Ox

    6.2 For A Daily Driver? What Are The Downsides?

    6.2, 6.5 basically the same. More bore, some head redesign and later updates on the bottom end, but essentially the same engine. To be fair to GM, despite their complicity, the electronic injection pumps were foisted on them by government emissions regs, and they did what they could with what...
  2. Blue Ox

    6.2 For A Daily Driver? What Are The Downsides?

    I'll blame spellcheck, but I think you meant arctic. They do have some hardened parts, and great if you can get one for cheap, but not really necessary unless you're burning jet fuel. As I said earlier, the timing advances are the real weak link. Usually, they're tired by 100K or so. For a...
  3. Blue Ox

    6.2 For A Daily Driver? What Are The Downsides?

    I don't think replacing the fuse block is a simple day job. But I can't say I've ever done it. That would concern me a lot.
  4. Blue Ox

    6.2 For A Daily Driver? What Are The Downsides?

    I suppose that's true. But GM didn't put them in these trucks now, did they? And like 618 said, great in small doses.
  5. Blue Ox

    6.2 For A Daily Driver? What Are The Downsides?

    It's no big block, but set up properly they're not as anemic as all that. They do have some weaknesses, it depends on the vintage. Some of the earlier ones were prone to block cracking. However, the later editions were a little stouter. The J engines were the better option. The big difference...
  6. Blue Ox

    1980 z28 rescue

    What I've been doing to minimize the filter mess is loosening the filter with a filter wrench, but not unscrewing it. Just loose enough that I can do the rest by hand. Then I use a screwdriver to punch a hole in the bottom of the filter so it can drain. After a few minutes I'll unscrew it enough...
  7. Blue Ox

    What have you done to your square lately??

    Keep in mind that on quad systems there is a separate high-beam lamp, but the low-beam lamp also has a high-beam mode, so all four lamps should be on when in high-beam. There will be three terminals on the low-beam lamp, a common ground and one each for the high and low positives. The high-beam...
  8. Blue Ox

    6.2 to 350 swap

    Chitty mileage? I did the reverse swap, so I probably can't help. But I wish you luck. The only suggestion I have to offer is to see if you can get a GM harness for the 350 instead of reworking the diesel harness. There's a lot more 350s going to the boneyard that harnesses can be scavenged...
  9. Blue Ox

    New brake shoe is coming off of anchor pin

    I'm going to ask the standard questions. Did the brakes behave normally before you changed them. Did you compare the old parts to the new parts to mke sure they matched? Did you reset the adjuster when you changed everything? At least we know you can spell Derek right.
  10. Blue Ox

    What have you done to your square lately??

    Nice to see a 5.7 still chugging along. They weren't quite as bad as most people thought. Especially the later ones.
  11. Blue Ox

    Rear brake seem to be grabbing harder than fronts

    Ah, I see. I'd have to dig through the spec books to see where these things emerged, but I'd suspect that the C6P package emerged with the '81 redesign that brought about the 9.5" axle and the NP208 X-fer case. I'm fairly certain that's when the frame modulus changed in the K20s from singular...
  12. Blue Ox

    Rear brake seem to be grabbing harder than fronts

    There's a combination valve on the front crossmember of all of these trucks. The LSPV is added to the ones with the big brakes.
  13. Blue Ox

    Why automotive grounds are important.

    Once upon a time that was more common. While technically more correct somewhere along the line we standardized on negative ground. The real problem comes in if you're working on an older vehicle and don't realize it's positive ground. I was trying to do some diagnostics on an early 1970s Mack...
  14. Blue Ox

    Why automotive grounds are important.

    Would it hurt your brain if I told you DC actually flows from negative to positive?
  15. Blue Ox

    How a relay works

    Repeating something that was drummed into me by a GM electrical engineer... "A relay allows a low current circuit to control a high current circuit." Just keep that in the back of your brain while you're working through this. Carry on.
  16. Blue Ox

    Brake size 11" or 13 ?

    C6P would be the RPO for the heavy-duty 8600 GVW package that would include the JD7 brakes.
  17. Blue Ox

    BC’s boat/dumpster fire thread

    I think its going to be a lot cheaper and easier than the last project. As long as it doesn't have corrosion issues.
  18. Blue Ox

    9 in ford in square body?

    Unless you're going racing, or working on a multi-link rear, why?
  19. Blue Ox

    Brake size 11" or 13 ?

    Inside diameter. Re: above I have a semi floater with 13" drums.
  20. Blue Ox

    6.2l diesel electrical problem!!!

    I'm referring to the '85 5 pin relay/sensor module on the back of the driver side head. '84 and before had the cylindrical sensor and Ford starter solenoid looking relay mounted on the fender. I'd post a pic, but don't have anything in my pocket right now.
  21. Blue Ox

    6.2l diesel electrical problem!!!

    '85 and up they were a combined unit.
  22. Blue Ox

    6.5 turbo swap

    Okay. Have fun.
  23. Blue Ox

    6.5 turbo swap

    Compression isn't an issue in these applications. It's not a gas engine. I ran 10-12 psi on my 6.2. Make sure you run a pyrometer no matter which setup you use. Actually I'd strongly advise against lowering compression in any way. It's detrimental to cold starting and efficiency. If you're...
  24. Blue Ox

    Need a new one, so Sliding or Solid Rear Window?

    Mine came with a solid and regular tint. When the sun was behind you you needed SPF 50. After an accident that broke the window we had a deep tinted slider put in. I'd never go back. Cooler, pass thru for some things, and being able to crack it open with one hand which kills all the buffeting...
  25. Blue Ox

    6.2l diesel electrical problem!!!

    It still sounds like a bad ground issue. How about the ground strap between the cab and the engine?

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