Awesome looking truck! Was it a hard swap?

 

LOOKS GREAT!! ,, and you didn't take long to do the swap. Good job,,,,,

 

K50, the most difficult part for me was deciding what eng mounts to run and what to design for a crossmember. The auto shift linkage was a PITA but wasn't high on the difficulty scale. I used the stock burb transfercase crossmember and the 47rh trans mount. That worked well. I'm using the burb intank fuel pump for now and its ok. I will upgrade when I have more funds. I gutted the electrical and kept only guage wiring. The temp works great but the oil press is backwards. The dodge sender reads differently than the gm. I intend to put an Autometer setup in there as well. All in all it was good. Suburbans should have came with a CTD to begin with. It's an entirely different vehicle! Thanks Brian

 

For the oil pressure sender, just use the sender that came from your burb. Might have to use a bushing to fit the Cummins threads. I swapped a Cummins into my F350... all the guages work great, including the speedometer.

Mark

 

The cummins looked like 1/16 pipe and I believe the gm is 1/8. Do you know what it is for sure? Appreciate the info. Brian

 

SWEET

 

I think the Cummins is 1/8" pipe thread. I used the original oil sender port on the Cummins, but you can also use the one on the top of the oil filter base, if it is easier to get to. Stop by the parts store, and compare the two threads,,, easier than trying to measure in a tight spot.

 

Mileage update: We completed a 655 mile roundtrip up Cloudcroft,NM over to Carlsbad,NM and back home. Our overall fuel average is coming out to 19.5. I seriously believe we could have been 21-22 without any mountains. That's doing 73 up and 70 back. CTD made a huge diff in the mountains. The old gasser would have sucked bad! I'm looking into 3.73s and a posi. I'm hoping to get close to 25mpg. I bet it would do it with the wife driving as she is a lot lighter foot! So far this conversion has been a great idea. That's what I keep telling the wife anyway! Still need to finish the exhaust but I'm enjoying the noise too much. Still haven't taken care of the Oil press either. I have indication, it's just backwards. I'll put up picks when I get the exhaust done.

 

Very nice swap I hope one day I will be doing almost the same swap. Have to finish all my training first.

 

Update: We have put approx 5000 miles on the conversion. Engine is running like a top. I finally installed a 4 inch exhaust but still need to put a tip on. Not a lot of room with the np205 in there. I'll post pics tomorrow.