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  1. 77 K20

    Tank replacement for EFI

    What is the sump doing when it gets hot? Pump stops? Pressure drops? Idle surges? I have their E-street TBI unit with the remote sump mounted on the passenger side between the headlight and the radiator. Haven't noticed anything out of the ordinary so far. Planning on changing out the TBI to...
  2. 77 K20

    New "Old" Daily - 8.1L

    The 8.1L is a 496 and was the replacement gas engine for the 454. I miss that engine in my old '03 Silverado. They do like using oil... it used a lot less oil switching from 5W-30 to 10W-30 synthetic.
  3. 77 K20

    Fouling issues

    Perhaps a dumb question- but are you sure the choke is opening and staying open?
  4. 77 K20

    Burnouts with a NP203 full time 4wd?

    My dad once told me a story when I was growing up how he would take his 1959 Chevy and have it roll backwards then he'd rev it up in neutral and drop it in drive. It was the only way he could do a burnout. Well- that story stuck with me and my 1978 K5 full time 4 blazer with a 400 was my first...
  5. 77 K20

    hello everyone

    Nice truck- thanks for sharing some pics with us. After years of ignoring LS engine swaps I'm now suddenly interested in them. Have you ever bothered to figure out gas mileage on that? Just curious... I've never seen those mufflers before either. Welcome to the site! :welcome:
  6. 77 K20

    Tilden Motorsports LS used engines

    So my father in law offered me his old GMC K15.(1984?) It has been sitting in a field since probably 2003? If I remember right it has the 305, and he said it ran horrible when parked. I'm sure it hasn't gotten any better. I started thinking about just putting a "generic" GM crate engine into...
  7. 77 K20

    Detroit steel wheel delreys on 37s

    Yep- those were it! At work we have large round tubs of teflon and those remind me of the teflon press there. Are those the same wheels in the top pic with the baby moon hubcaps? Hard for me to tell on my monitor... looks like they are. If so I do like those. Amazing the difference. You...
  8. 77 K20

    Detroit steel wheel delreys on 37s

    I like it with those wheels and color. I think I saw someone has the 20" version and painted something odd- like white. Didn't look right in my opinion. Funny to see a 37 next to a stock tire. Been so long since I've run stock size it is shocking to see them side by side.
  9. 77 K20

    Snow wheeling. Now I want to re-configure...

    Ok, saved some of the pics and reposted. I'll add a few more here. There was a big snowdrift that ran right down the middle of the road. Probably 7' deep- and the best way around it was just to take the ditch. I'm glad I got the right offset to push my tires out so I didn't scrape body panels...
  10. 77 K20

    Shocks?

    Just go with the best price. I'd recommend some KYB shocks as they should be in the same ballpark.
  11. 77 K20

    Snow wheeling. Now I want to re-configure...

    Went back up the same road- but without the almost stock vehicles. Made it up and over the mountains. Tough ride. Some parts still had sugar snow on the north facing slopes. Then the sun came out and it warmed up. Had some nice wet snow and a few downed trees. Right off the bat the snowbank...
  12. 77 K20

    Atlas Leaf Springs

    I don't know anything about Atlas springs... but when I wanted new 56" stock height rear leaf springs I did a bunch of research. Found a lot that recommended Dayton spring. They are apparently the same as TRW which is also supposed to be good. And I found the rear springs on Rock Auto- which...
  13. 77 K20

    Protecting catalytic converters?

    I have read two articles here in Montana in the last month about this. Mainly Billings and Missoula are having this problem. Some people were even hit twice. F'in thieves waited for them to take their vehicle in and get fixed just to hit it again. :banghead: The articles had some suggestions...
  14. 77 K20

    EZ Ride springs: Regular or HD

    Sorry for a slight thread jack here- what about on stock rear springs? I've heard that some flip the overload leaf on the bottom upside down but have you ever cut that stock leaf down?
  15. 77 K20

    New Leaf Springs...How did I goof it up?

    The axle is in the same place. The center pin of the 56" spring pack isn't in the center. It is offset. (26"/30") You just have to make sure that the short part goes forward. The 52" springs have the center pin in the center (26"/26")
  16. 77 K20

    So Does Everyone HATE This Steering Wheel?

    I took out my stock wheel to get a smaller one because I: -don't have a tilt wheel -have a lifted truck without any sort of steps. Easier to hop in and out of -don't ram my legs as easily against the steering wheel when hitting unexpected bumps off roading -have more room to roll the driver's...
  17. 77 K20

    Wire coming out of rear shocks

    I believe he was talking about a shackle flip- where instead of a tension style shackle it is a compression shackle. Here was a pic when I was installing the 2.5" shackle flip lift. The stock shackle and rubber bushing does not allow free movement of the shackle- so you get a rougher ride...
  18. 77 K20

    Wire coming out of rear shocks

    ORD is now making beefed up stock style tension hangers. They allow the shackle to move a lot for a nicer ride.
  19. 77 K20

    Wire coming out of rear shocks

    I don't think air shocks were ever stock. I had a '78 K15 that had air shocks when I bought it from the previous owner. The airlines went back to the rear bumper where they drilled in a schrader valve. If yours is going up to the cab some shock companies made an in cab controller to change the...
  20. 77 K20

    Wire coming out of rear shocks

    A picture might help. You sure it is a wire and not an air line?
  21. 77 K20

    Snow wheeling. Now I want to re-configure...

    Can't find or buy a new chain for a NP203. They seem to be backordered months and then want several hundred for a new chain. So gave up on that. Found a full time NP203 in a junk yard and had the shop put that in. Twin stick is kinda nice- easy to shift. But the right shifter linkage (I'm...
  22. 77 K20

    M2 brand squarebody diecasts

    I like that Fanta one... If no one else wants it I'll take that one. :D
  23. 77 K20

    Warn hydraulic winch?

    I'm probably a year out from buying a winch. Need a winch bumper first- but good to hear different input from people. :waytogo:
  24. 77 K20

    Driveline Opinions

    With the full time 203 you won't get stuck then have to climb out in the snow/muck to lock in the hubs (hey- it happens). And since the truck is full time 4 you won't have any issues of the rear end suddenly trying to slide out on you in 2 wheel drive. A limited slip can cause you to lose side...
  25. 77 K20

    87 2500 4x4 truck build

    You have a good rear end ratio for pulling. Depends on the weight of the 5th wheel. Not advisable towing at 70 mph. Better to slow down as trailer tires usually aren't happy at speed (speed equals heat, then blowout). It *could* probably tow at 70 mph but then your fuel economy will greatly...

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