Recent content by LB7OBS

L
1991 1500 with a LB7 duramax swap

no, it did need a 1 inch body lift but that was typical for even newer dmax trucks
- LB7OBS
- Post #9
- Dec 11, 2022
- Forum: Engine Performance + Maintenance
L
1993 C3500 Cummins or Duramax Swap ?

Been running my LB7 in my k1500 for almost a year. Crazy reliable, amazing on fuel, not very many people expect it. Injectors are expensive but small price to pay for how great the lb7 is on fuel, I’m on a mileage tune that’s supposed to be 400hp/700tq and the thing is a straight missile. I...
- LB7OBS
- Post #23
- Dec 11, 2022
- Forum: Engine Performance + Maintenance
L
Duramax Swap Opinions

I have mine in a k1500 frame and it handles the torque and power fine, it’s been almost a full year of me daily driving mine, it’s a 400hp 700tq combo, I recommend a true track in your diff… gov lock didn’t make it far lol.. The dmax was designed for the gmt400 so it fit amazing with a small...
- LB7OBS
- Post #7
- Dec 11, 2022
- Forum: Engine Performance + Maintenance
L
1991 1500 with a LB7 duramax swap

Hahaha I actually just found a smoothie bumper for it at a pick and pull so that bumper will be gonzo! And thanks!!
- LB7OBS
- Post #5
- Dec 11, 2022
- Forum: Engine Performance + Maintenance
L
1991 1500 with a LB7 duramax swap

Everything works, new drive shafts 12 bolt diff with tire track in it 50hp gas mileage tune, I have been daily driving it since I got it, just gotta put the 4wd shifter in the floor, it’s the 5 speed Allison with the duramax manual transfer case. Just gotta get on getting more of the gauges...
- LB7OBS
- Post #2
- Dec 11, 2022
- Forum: Engine Performance + Maintenance
L
1991 1500 with a LB7 duramax swap

Just decided to join the forum, I bought a 91 OBS and it was half finished, finished up some wireing and some paint to get it to where it is now, just in the process of a seat swap and stereo upgrade.
- LB7OBS
- Thread
- Dec 11, 2022
- Replies: 8
- Forum: Engine Performance + Maintenance