5.4 Gasser conversion to 7.3 Diesel

[niftytwofifty]

i got a line on a cheap 2001 f250 with a blown gas V-8.

Is it economically feasible to take a gasser and drop in a 7.3?

The 7.3's are becoming harder and harder to find, so I was thinking maybe I could maybe drop in a 7.3.

Any help or insight would be appreciated.

[DrewGerhan]

Physically Id think it would fit just fine. Wiring however might be an entirely different issue.

[Zaairman]

Originally Posted by niftytwofifty

Is it economically feasible to take a gasser and drop in a 7.3?

No, not at all.

[niftytwofifty]

Well that pretty much rained on my parade.

[dereku]

not without a donor vehicle. So if you can find a rollover or completely totaled one then it could be close. But its better off to fix and sell the v8 and buy a 7.3

[rufushusky]

Originally Posted by niftytwofifty

i got a line on a cheap 2001 f250 with a blown gas V-8.

Is it economically feasible to take a gasser and drop in a 7.3?

The 7.3's are becoming harder and harder to find, so I was thinking maybe I could maybe drop in a 7.3.

Any help or insight would be appreciated.

"economically" and "diesel" are kinda contradictory terms, right?

Seriously, not it would be MUCH cheaper IMHO to just buy a 7.3 power truck

Originally Posted by dereku

not without a donor vehicle. So if you can find a rollover or completely totaled one then it could be close. But its better off to fix and sell the v8 and buy a 7.3

^^ another option is a cummins swap...wiring won't get any easier than a VE or p-pumped 12V...still not cheap. Your spending at least $5-6k....at least!

[dazdillenger]

It would be very simple. Get a donor truck, and it's all plug and play. As the truck was offered with a 7.3 as an option, it is a very simple ordeal to convert it.

[rexwclim]

I currently have a 99 F250 SD with the 5.4L and manual 5 speed. I have found a 7.3L, rearend wrecked, 97 F350 also with a 5 speed. My question is will the 97 7.3 mount into my truck? the 7.3 currently will run but has been totaled and my motor has a bent rod and blown plug. I know i would have to take the wiring harness out of the 97 and put into my 99 but with the body changes i didn't know if there would be any complications. any help or suggestions would be greatly appreciated!

[dazdillenger]

You would be best off getting a superduty donor, as it would simplify wiring significantly. You will have to source a lot of parts should you decide to use the OBS truck that are superduty specific-pedals, hydroboost, etc. The motor will physically fit if you use SD mounts (from a 7.3), as will the trans, but as the SD had the 6speed, you won't get an off the shelf crossmember to fit. There will be a lot of work required to make the OBS drivetrain function in the SD.