5.2 5.9 magnum EFI plug and play harnesses

depends on what you paid for the motor and trans, really. If you're smart and crafty, it's best to buy a wrecked donor vehicle and be sure you get everything, that way there's no multiple trips and nickle-and-diming at the junkyard. pull-a-parts seem to be francising across the country, that's where i got my entire setup for my Fury for like $250. fuel pump is about $35. Harness is $350. A crafty guy can change to EFI and OD for under a grand. If you're like me and hemichuck, you'll likely be able to part out the rest of the donor and end up with free stuff (I paid 600 for the donor for the test stand setup, sold 500 in parts, got 300 in scrap, and kept everything I wanted like the motor, trans, harness, computer....)


Jeff, sounds like a winter project! The hardest part of the whole EFI/OD swap (using my harness) is the floorpan mod, and that's no big deal. Bolt the motor and trans in, drop the tank and put the pump in it (no cutting required!), then plug the harness in and tap in a few wires and go. If I can get 20mpg out of a 4000lb fury with NO overdrive, imgine what your dart could do. Once I get the 3.73 rear in it, then I can use the OD. The car has 2.94's in it now, and with 3.73 x .69, I end up with a final gear ratio of like 2.55, which should be sweet for those nationals road trips!