Thanks man, is that the 5.9 that was in the mid 90's models? Also, I'm not saying its a weak motor because its not, but I want duals and glass packs, and on a six cylinder that sounds like a grain truck. I want loud clap/pop to the exhaust. It won't be a daily driver so noise pollution won't be a problem.
You can find plenty of 7.3l online...not sure of the fit, but I'd have to think there's room.
Why do you want to go non-turbo? The 7.3l powerstroke is pretty bulletproof. The b50 is around 350,000 miles and you'll find plenty of engines around 1,000,000 miles that have zero problems other than blow by from all the miles (they'll keep chugging along like nothing's wrong though). You're not losing any reliability or adding any installation difficulty with the turbo but you're looking at a sub 200hp dog without one.
No one will deny that Cummins is a great engine. They last forever, are easy to work on and I love the sound...but everyone throws a cummins into their conversion. It's like buying a corvette for your mid life crisis
Get any 1994.5-2003 7.3l powerstroke if you can find one and you'll have a pre-emissions engine with plenty of power that will last forever. They sound great too...kind of a mix between a semi and a cammed V-8 gasser.
Don't get a 6.9 though. If you want an old slow diesel, get a 7.3 IDI (different engine than the 7.3l powerstroke)...theyre gonna be gutless (especially without a turbo), but at least they sound good (and last forever).
I'd love to throw a DT466 into an old Bronco (Definitely not a simple drop in though). That's something that would be fun to drive and something you don't see every day.