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Dually Projects \  12 valve cummins

12 valve cummins

Dually Projects
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hotrodtodd   +1y
here is a pic of the engine ,not trying to figure out how to post pics,
thread post photo
wide load c-30   +1y
Any more pics/information on your 12 valve swap? How much did it cost, does it have the stock rear, did the front end lower a little with the added weight, does your a/c work, does it have the stock cross member, etc? I would love a cummins in my square but I want to keep the TH400 and add a GV O/D.
hotrodtodd   +1y
the motor mounts were $300.00,it has the stock dana rearend,it also has the intercooler,radiator,ac compressor and trans(4spd auto from the 93 dodge doner veh..the frame had to be slightly alterered for the ac compressor,aswell as the front crossmember for the crank pulley.the engin eweighs 1000lbs dry so the front came down about 1-2 inches.the engine gets between 25-27 mpg depending on how hard i mash the pedal.i like tire smoke.i almost forgot the rearend has 3:55 gear
wide load c-30   +1y
Looks sick! Do the stock gauges work? Any Mods? About how much did it run you? Stock fuel tanks? Fuel lines?
hotrodtodd   +1y
all guages except speedo work ,stock fuel lines and tank,truck had 6.2 pos when new,shifter on the column is backwards ,i havent figured that out yet,but runs like a champ
pig rig   +1y
I know ben shady is getting ready to shove a v 12 in his I'm hoping he post lots of pictures
I'll shoot him a tex to chime in a little
wide load c-30   +1y
^^^ That is going to be badass.


I know there is an adapter made to run a Cummins with a Turbo 400. I want to run the Turbo 400 w/ a GV/OD so there aren't any speedo/shifter issues and because they are known for being tough. There is also a crossmember made that allows you to just drop a cummins into a squarebody.

Is your hydrobbost from the donor vehicle as well?
hotrodtodd   +1y
the cross member only has to be notched,no hydroboost
bgeraurd   +1y
Where did you get the motor mounts from? Are they P30 mounts? Do you have any pics of the intercooler mounted behind the grill? Do you still have a/c? Are there any a/c box clearance issues?