00 7.3 vs obs 7.3

[joes7.3]

Hey guys, I'm new here and have recently bought a 00 f250 7.3 for next to nothing. It has 255k miles but runs great. I have a buddy with a 97 7.3 that I can get for free. I was going to throw it in the garage and rebuild it for later when or IF mine craps out. I have heard that they are different but was wondering if I could take a 97 and go 0.20 over and build it for my truck. I know the turbo, electronics, and turbo are different but I was hoping I could piece together a long block with this 97. Any advice?

[krs1r/t]

I'm interested as well!

[INFRNL]

I'll let the experienced answer properly, but I do know the blocks are the same. I think there are just a few things you will have to change/swap over for it to work in your SD.

There is a guy around the forums named Joe, been around for years; he just put a 96 (I believe it was) 7.3 in his sd. He stated what you nned to change over, but I do not recall.

[JSchuricht]

A 97 motor will be easy. Stick a freeze plug in the hole for the mechanical fuel pump, swap injectors, valve cover gasket/harness, intake manifold, exhaust manifold, up pipes, turbo pedestal and all accessories. Other than that, perhaps the passenger side valve cover if you have a non catalyst sticker and need to do emissions.

[dieselcrawler]

I have a '96 motor for exactly that reason. Found it in a local trade paper and got it for $300. Was told it was running when pulled but poorly due to valve cover gasket harness issues. Turns out he reused the valve cover gaskets on the new motor and it ran as bad as the one I bought. Changed gaskets and runs fine. So I should have a good motor. However, I plan to do a full stock rebuild when the time comes.

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[joes7.3]

Thanks for the feedback. Glad to hear that I can use it! Going to have to rebuild it though. Injector cups were leaking and put a bunch of fuel in the motor.

[timmyboy76]

when doing cups, use the "upgraded" sealant, so you can run the ELC coolant.

[dannanw]

Originally Posted by JSchuricht

A 97 motor will be easy. Stick a freeze plug in the hole for the mechanical fuel pump, swap injectors, valve cover gasket/harness, intake manifold, exhaust manifold, up pipes, turbo pedestal and all accessories. Other than that, perhaps the passenger side valve cover if you have a non catalyst sticker and need to do emissions.

this 100% couldn't put it better