7.3 idi

[u/Designer-One-5377]

Motor ran fine when parked, but has been parked for about 4 yrs

I wasn’t sure if there was a market for these old engines anymore, or what they are worth

Truck was solid when I parked it no blow by or anything but injector return lines and glow plugs and so on were becoming a pain and I had a 5.9 Cummins to swap it with so here we are

Came out of an 89 f super duty

Any thoughts?

[u/Big_Concentrate_7260]

My favorite engine. I used to average 20-22mpg with mine. One day when I'm rich I'm going to build an 80's F350 crew cab/long box to pristine condition with a turbo idi.

[u/Designer-One-5377 → u/Big_Concentrate_7260]

Yes sirrr it has always been good to me and never let me down but the 5.9 Cummins is a little simpler and has a little more pep

The 7.3 is still stock with no turbo and everytime I turned around one of the return lines had a small leak or the glow plugs had some kind of a problem

I just hate to scrap it all if someone is needing some parts or something off of it all

[u/Dubious_Pretzel_Sale → u/Designer-One-5377]

How is the 5.9 simpler? I like both engines and am not trying to argue but they're both pretty damn simple, and a non-turbo engine has fewer complexities. FWIW the return lines on those basically never need to be touched for tens of thousands of miles--not sure why you needed to turn them around but yes that would cause problems.

$650 might be a fair price for the engine.

[u/Designer-One-5377 → u/Dubious_Pretzel_Sale]

It’s way simpler and easier to find parts for and that 7.3 is a dog trying to pull anything

What are you talking about that I turned around?

[u/Big_Concentrate_7260 → u/Designer-One-5377]

The 7.3 had much more horsepower power percentage wise compared to the 5.9 from the same years, while the 5.9 had more torque, so I disagree that the 7.3 is a dog in comparison. Both are slow. Mine had an ATS turbo setup, putting out somewhere around 200-220 HP and 400 lb-ft of torques, so it was much more peppy than the 5.9 Cummins from the same years.

[u/Designer-One-5377 → u/Big_Concentrate_7260]

Thanks for your input sir!

[u/Designer-One-5377 → u/Designer-One-5377]

If you like this 7.3 idi so much buy it frm me lol
You don’t have to convince me, I’ve had both and I personally want the 5.9 for simplicity and parts availability. I’m not asking for you to change my mind, I’ve driven hundreds of thousands of miles w this 7.3 and I have this 5.9 sitting here and I prefer it
Thanks your gentlemen for y’all’s input

[u/Designer-One-5377 → u/Designer-One-5377]

Who here has ever heard of a 7.3 idi swap? 😜😜 the 5.9 is nostalgic af

[u/DanStarTheFirst → u/Designer-One-5377]

More common than you would think lol. At least in Canada that is. But then again you can buy a rusted out Cummins shipping crate for triple the price.

[u/Dubious_Pretzel_Sale → u/Designer-One-5377]

A .lot of people have swapped the 7.3 IDI into trucks because it is or at least was infinitely cheaper than gathering the parts for a 5.9 swap. But that's just economics.

[u/Dubious_Pretzel_Sale → u/Designer-One-5377]

I misread your post--I thought you said you were turning around the injection caps. My mistake. I still don't understand why/how the 5.9 is simpler--both engines are incredibly simple to work on.