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  1. bulletpruf

    starter bolt sizes

    Found some at McMaster Carr - "Extreme-Strength Steel Flanged Hex Head Screw 3/8"-16 Thread Size, 1-1/2" Long 97972A317" The head is 7/16".
  2. bulletpruf

    starter bolt sizes

    The issue is with the bolt head; I'm not sure if I can find some with heads for the 1/2" socket instead of a 9/16". Thanks
  3. bulletpruf

    starter bolt sizes

    Yep. 3/8 coarse, head takes 1/2" socket, the overall length is 1.625" or the length below the head of the bolt is 1.375". If anyone can spare a few, I need some. I'm missing one and the two that I have are crusty (came off plow truck).
  4. bulletpruf

    Is This a C6 Crank Spacer or E4OD?

    Someone in one of the IDI Facebook groups said it depends on the flexplate -- the C6 with the thin flexplate uses this, too. Thanks
  5. bulletpruf

    Is This a C6 Crank Spacer or E4OD?

    I'm going through stuff in my garage to catalog and sell and I've had a few different engines, so not sure which one this came from. I'm pretty sure the C6 and the E4OD transmissions used different spacers; does anyone recognize this one? Thanks
  6. bulletpruf

    Rebuild My Stock Turbo Send to be Rebuilt, or Get Aftermarket Turbo?

    I ended up sending it to Justin/R&D IDI for an upgrade to Stage 1.
  7. bulletpruf

    7.3 IDI Turbo Build for '87 Crew Cab Dually 4x4

    More progress...
  8. bulletpruf

    7.3 IDI Turbo Build for '87 Crew Cab Dually 4x4

    Head studs installed, followed by head gaskets, heads, pushrods, then rockers.
  9. bulletpruf

    7.3 IDI Turbo Build for '87 Crew Cab Dually 4x4

    Yep. And I enjoy the wrenching that gets it to that point, so everyone is happy.
  10. bulletpruf

    7.3 IDI Turbo Build for '87 Crew Cab Dually 4x4

    Yep. I just enjoy working on them, and if I lose $ when I sell them (I certainly will with this one), no big deal. Also, I'm retiring from the Army in mid-July and headed back home to Texas. I have 5 project cars waiting for me there. I can really put Brutus first in the queue, and if it's...
  11. bulletpruf

    7.3 IDI Turbo Build for '87 Crew Cab Dually 4x4

    I think I figured out the issue with the intake valve seals -- the intake guide bosses have been machined down from .626" or so to .562". The seals I ordered were for stock unmachined bosses, so they wouldn't remain in place. Ordered some Viton seals for a .562 valve guide with 3/8" valves so...
  12. bulletpruf

    What brakes do you suggest?

    For something like this, I'm with CDX825 - name brand stuff from Rock Auto.
  13. bulletpruf

    7.3 IDI Turbo Build for '87 Crew Cab Dually 4x4

    Yeah, I'm not sure I'm going to end up running exhaust seals. The issue is not that they're tight around the valve (they are; I have .015" oversize stems, but they're umbrella seals so no big deal) but the seal OD is fairly large compared to the ID of the Comp 910 springs. If I can get some...
  14. bulletpruf

    7.3 IDI Turbo Build for '87 Crew Cab Dually 4x4

    More steps backwards this week. Not happy with valve stem seals - the intake seals don't want to stay on and the exhaust seals get caught up in aftermarket springs -- not as much room inside as the OEM springs have. Ordered three different sets of valve seals from Rock Auto; will see if I get...
  15. bulletpruf

    ZF5 rebuild preferences? DIY, rebuilder, etc.

    Around here it's $1,000 or so for a 4x4 ZF5 and about half that for 4x2.
  16. bulletpruf

    Thermostat & waterpump install

    The middle two on the bottom can also interfere with IP gear...
  17. bulletpruf

    Rebuild apprehension with 6.9/7.3idi

    I'm almost done with rebuilding a 7.3 IDI turbo, most is or will shortly be on my YouTube channel (link below). Some general thoughts/recommendations - -Get a good heavy duty engine stand. I'm using the $200 one from HF - rated for 2,000 lbs. I would not use anything less substantial than...
  18. bulletpruf

    Can you take the cylinder heads off without cracking them?

    I'd recommend magnafluxing once they're removed. Inexpensive at a machine shop or you can do it at home. I found a crack on my 7.3 heads when I checked mine, and I was seriously upset because they were beautiful low mile heads with excellent seats and valve guides and not warped, either...
  19. bulletpruf

    Honing a 7.3 idit

    Do NOT use 320 grit. Way too fine. I used 240 for mine and that still wasn't coarse enough. The manual recommends 120 grit, if I recall correctly. As for size, I think Brush Research has the largest selection. Might be worth giving them a call to see what they recommend. If you decide to...
  20. bulletpruf

    What are IDIs REALLY selling for?

    I'm going to find out pretty soon about value. My '87 crew cab DRW F350 7.3 turbo ZF5 4x4 conversion will be for sale soon. I have well over $10k invested, but the plan is to throw it on eBay with no reserve and see what it brings. Hope I don't lose a ton of $.
  21. bulletpruf

    Knock please help

    Glad you got it figured out, and thanks for following through with the details.
  22. bulletpruf

    New to me f350 what to do

    850cca is good; just make sure they have a fresh charge.
  23. bulletpruf

    New Engine Stand Idea

    If you have fab skills and too much time on your hands, that setup would be slick. I don't have a bunch of free time so I just dropped $200 at HF for their 2,000 pound capacity stand...
  24. bulletpruf

    Crank Spacer - Auto Trans Only?

    Ok, I'm using the Luk kit; thanks for the details. Will put in an order for bolts soonest. Scott
  25. bulletpruf

    Crank Spacer - Auto Trans Only?

    Ok, so I have disassembled three engines - 6.9 (manual trans), 7.3 x 2 (both auto trans - a C6 and a E40D) - and have parts strewn all over the garage. I have rebuilt one 7.3 and it's going in my '87 CC DRW 4x4 F350 with a ZF-5, single mass flywheel. The thick crankshaft spacer is only for...

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