Cummins 4BT & Diesel Conversions Forums banner


  1. Ebay "genuine" HX30

    Performance Discussion
    Im looking at giving the 4bt in my 91 C1500 a rebuild as its burning oil pretty bad right now. I think the engine is at around 500,000 miles. While im at it I want to do some performance mods. On the list right now is a denny t stage 1 fuel pin and maybe some power driven diesel injectors. Im...
  2. Cummins 3.3 Turbo "swap kit" - NV3550 NP231 30-35 mpg

    General Classifieds
    Decided to keep the engine setup - Not 4 sale.