6.9 and 7.3 same block? - Ford Powerstroke Diesel Forum
6.9L IDI Diesels Technical discussion of topics related to vehicles powered by the 6.9 Liter In-Direct Injection Navistar engines.

 
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post #1 of 3 Old 06-16-2009, 03:21 AM Thread Starter
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6.9 and 7.3 same block?

I just got a IH 2 ton with a seized? 6.9 in it,,I was wondering if a 7.3 IH would bolt up in its place,,I have located several 7.3's,,,,,Thanks in advance....Parker

Just got a F-350 with a 6.9
And a s-1900 with a siezed ? 6.9
Been running gas Int. 1600's for 20 years hauling firewood
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post #2 of 3 Old 06-16-2009, 05:54 AM
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It should fit. There are some differences between the two, but externally they are pretty much the same. A 7.3 should swap in pretty easily.

'02 F-350 lariat cc 4x4 drw
ts 6 pos.(custom tunes coming soon)
afe II, mbrp 5", zoodad, ccv mod,
overboost annihilator,
bullydog big woof II w/ high flow outlet,
guages

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"the dyno-beast" '05 vw jetta tdi
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(wife's rig) 1500hp/2000tq
Ok, ok, so I may have added a zero or 2.
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post #3 of 3 Old 06-16-2009, 05:56 AM
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The swap would be easy pretty good replacement. As far as the blocks there are several differences!

Project Frankenstein


1997 Ford F-350, Dually conversion, Cobra 29 LX CB, 12000 watt converter, All LED lights, TW tunes, 4" DP, Napa Intake and lots of running lights.

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Thanks. I'll give er a good wackin in the morning.
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