Cummins 4BT & Diesel Conversions Forums banner


  1. hydro-boost and exhaust brake

    Isuzu 4BD1T/2T
    I'm in the planning stages of my swap, a 4BD1T into a 97 Landcruiser. I'd like to go to hydro boost, and to an upgraded alternator w/o a vacuum pump on the back. The factory NPR exhaust brake I have is vacuum actuated. I'd like to avoid adding a vac pump if possible. Has anyone actuated...
  2. 85 Chevy 4x4 4bt Swap

    General Discussion
    Hello Everyone. I have a 85 Chevy Truck that I'm trying to swap to a 4bt. It had a 350 SB Chevy in it originally. I purchased a Transmission adapter so the engine is straight up and down and not tilted with the stock GM adapter plate. Everything bolts up nice and looks good and I was going...
  3. 4BT stock "low & down"exhaust manifold- in Norco, CA, 92860

    General Classifieds
    I'm using a cut 6BT gen-2 for my CJ7 build and have this absolutely beautiful piece of Cummins engineering left over. It'll never be used in the Jeep b/c it mounts the turbo too far back and the exhaust outlet against the firewall in the stock orientation. Flipped, most of the turbo would be on...
  4. Jeep TJ Exhaust Thoughts

    General Discussion
    Well i have spent some time looking at different threads and seen people quick little thoughts and exhaust designs, but i was thinking... What would it look like to run a stack through my hood..? Is this even a feasible option? It seems like it would be a good idea for a rock crawling rig...
  5. What Mufflers are you using on your 4BT egnines? Where does your exhaust dump?

    Performance Discussion
    I am swapping mine into an 03 F150 Supercrew. It will be a Family vehicle, and i want to be able to talk while going down the road. It is the XLT package so its pretty quiet, but i'm double layering some foil backed sound proofing material. My initial plan is to use the exhaust from the Chip...
  6. WTB, WTT power steering adapter

    Want to Buy
    Looking for the gear driven power steering pump adapter. Have a low mount exhaust manifold, and vacuum pump to trade, as well as cash. Let me know if you can help. Thanks, Jered
  7. Got an Extra Flowmaster series 70 Bigblock muffler

    General Classifieds
    Hey guys, I ended up with an extra flowmaster series 70 muffler, 3" in and out, center/center. Its new and never opened in the box. Im going to send it back to summit in a week or so, but if someone is intereseted in it. I will sell it for what summit charges and I will pay for shipping (...
  8. Got some performance/ Capability Questions

    Performance Discussion
    Hi all, I am fininshing up my Wagon swap and Im noticing that I dont have much power availible. Its enough to run around town and get on the highway and things but you wont be peeling tread from the tires with it. When I put the exhuast on It seems like I lost even more power and I cant...

    Cummins Tech Section
    PLEASE BOOKMARK THIS THREAD FOR FUTURE REFERENCES Dodge NV4500 hydraulic clutch line adapter fittings: <=Hose Adapters <=Into Ford