Cummins 4BT & Diesel Conversions Forums banner

6bt and 4bt

  1. Need help on deciding 4BT or 6BT for K20

    Cummins 6BT / 5.9 Conversions
    I'm a student in High school planning on buying a K20 this year, but I'd also like to swap a Cummins in it. I don't have a lot of fabrication experience but I do have the people and resources to help me out. This will be my first truck and first swap. Since my budget is tight I thought of doing...

  2. Will 6BT front over fit 4BT

    Cummins Tech Section
    Question, Will a front gear cover from a 6BT fit on a 4BT? Other questions to think about what else will interchange?
Top