00 7.3 vs obs 7.3 - Ford Powerstroke Diesel Forum
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post #1 of 8 Old 02-27-2013, 03:07 PM Thread Starter
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00 7.3 vs obs 7.3

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?
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post #2 of 8 Old 02-28-2013, 04:30 AM
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I'm interested as well!



2000 f-250 superduty
leveled on 375/65/16 MTZ's 16x12 Classic 3,"X" code front leafs, afe stage 2 intake, 175/80 p.i.s injectors, 38R turbo, Adrenaline hpop,ITP return fuel sys with reg,
4" from turbo back, lentech built trans, 12 billet converter, DP tuner!!!
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post #3 of 8 Old 02-28-2013, 08:54 PM
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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.

03 F350 7.3L Auto CC LB Dually 410's (LS Rear)315's

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post #4 of 8 Old 02-28-2013, 09:21 PM
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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.

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post #5 of 8 Old 03-01-2013, 04:36 AM
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Re: 00 7.3 vs obs 7.3

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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'99 E350 DRW Stahl 11' util box van, 7.3 PSD, stock. 138k SOLD

'00 F350 extcab, 9' utility bed, dually 221k

E'99 F250 extcab, S/Bed 211k

'00 Excursion Limited, 7.3PSD 281k

'84 Chevy K-30, 6.2L TD, woods/trail beater. 141k

Semper Paratus
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post #6 of 8 Old 03-01-2013, 05:21 AM Thread Starter
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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.
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post #7 of 8 Old 03-01-2013, 05:51 AM
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when doing cups, use the "upgraded" sealant, so you can run the ELC coolant.

99.5 x-cab 7.3l, 6spd, 161k miles.....
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post #8 of 8 Old 03-01-2013, 05:52 AM
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Quote:
Originally Posted by JSchuricht View Post
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

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