Recent content by 77Dmax

  1. 7

    12v Cummins Swap Wiring

    Whats nice about GMs of this era is the computer harness is separate from the engine and light harness. All the computer stuff comes out of the right side and all of the engine/light stuff comes through the fuse box connector on the left side.
  2. 7

    1991 Suburban 3/4 ton: TBI to Holley Sniper conversion - stupid, or worth it?

    I'm actually working on retrofitting a GM tbi to an old Buick. I think I'm going to use a megasquirt controller. I have the capability/software to tune the early computer but it is a pain. The megasquirt seems like a good option to use GM parts and bring the ecm into the 21st century
  3. 7

    Vortec 8100/8.1L Oil Pan

    For that kind of money it's not worth trying to find used pieces.
  4. 7

    Vortec 8100/8.1L Oil Pan

    Both are available new still. RA has them both for $150ish.
  5. 7

    How do you all get 6.2s to 300K miles?

    Step one remove the 6.2.... The best thing to do is have a full set of accurate guages and monitor them. I got about 170k out of my NA 6.5 before it started losing oil pressure. I nursed it to 200 before it finally bottomed the OP guage out. Keep up on the maintenance and don't ignore any issues.
  6. 7

    Vintage mag question

    Thanks for the advice. I'm not that versed in them, they're all just turbines to me!
  7. 7

    Vintage mag question

    They are 15 spoke but not exactly same. These have years of shelf dust and grime on them. No pits/corrosion or gouging. Definitely need a power wash which I can do.
  8. 7

    Vintage mag question

    I have a matching set of 4 I've been meaning to list. 15x10, 6 bolt pattern. I've owned them for 20 plus years, haven't been on a truck in about 15..
  9. 7

    1991 Suburban 3/4 ton: TBI to Holley Sniper conversion - stupid, or worth it?

    Step backwards over a TBI. Thats all those systems are. A good tune on your existing setup would be worth more.
  10. 7

    What have you done to your square lately??

    Picked the kid up from daycare. Pretty big day for the old turd..
  11. 7

    The infamous 10" bumper

    Its a late build 48. Complete with the 8BA flathead.
  12. 7

    The infamous 10" bumper

    My truck is one or two notches uglier than yours.. This bumper perfectly bridged the gap between the new hitch and box. A stock bumper would have looked odd. That's junkyard fresh paint too
  13. 7

    The infamous 10" bumper

    Ha, thats the bumper on my truck. Its heavy..
  14. 7

    Will a 8.5 Camaro 10 bolt axle fit in a 1981 squarebody?

    The spline change was a year thing, not car vs truck. All 8.5 axles were 28 spline into 87, beyond that they all went to 30 spline.
  15. 7

    what other years rear end fit my 1979 chevy c-10 big ten.

    M21s have a 2.20:1 first gear ratio. Math it out.
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