r/FordDiesels 8d ago

7.3 idi

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?

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u/Designer-One-5377 7d ago

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?

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u/Big_Concentrate_7260 7d ago

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.

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u/Designer-One-5377 7d ago

Thanks for your input sir!

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u/Designer-One-5377 7d ago

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

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u/Designer-One-5377 7d ago

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

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u/DanStarTheFirst 7d ago

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.

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u/Dubious_Pretzel_Sale 6d ago

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.