Anyone dropped a superduty 7.3 into OBS?? - Ford Powerstroke Diesel Forum

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post #1 of 14 Old 08-02-2010, 03:01 AM Thread Starter
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Anyone dropped a superduty 7.3 into OBS??

Has anyone put a superduty 7.3 into an old body style?? Im rebuilding the 96 and was wondering if I shouldnt just try to find a superduty 17* engine to put in. Seems like all you would have to do is get it tuned properly for the injectors. I know theres guys running split shots in these trucks isnt there??

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Open downpipe
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96 powerstroke extended cab 7.3
4x4 393000 miles

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post #2 of 14 Old 08-02-2010, 06:21 AM
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You don't need to swap the whole SD engine unless you just feel like it. Just grab the 17° HPOP off an SD and it will bolt right into your truck (though I recommend sending it to Joey at Terminator Engineering to have it modified first). SD injectors will drop in also but you'd be better off going with a set of Stage 1 single shots. Get rid of the fuel pump in the valley in favor of a stock SD electric pump as well.
If you want to do an SD engine swap you will need the complete engine harness as well since the accessories are setup up different (alt and a/c compressor trade places among others) and the UVCH connections are different as well.

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post #3 of 14 Old 08-02-2010, 01:56 PM
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if its power your after your better off keeping the engine you have in it since it has the forged connecting rods and single shot injectors, most super dutys have weaker powdered metal connecting rods, its a more common swap to put an first gen engine into a super duty


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post #4 of 14 Old 08-03-2010, 09:48 AM
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Originally Posted by Mavsps View Post
Has anyone put a superduty 7.3 into an old body style?? Im rebuilding the 96 and was wondering if I shouldnt just try to find a superduty 17* engine to put in. Seems like all you would have to do is get it tuned properly for the injectors. I know theres guys running split shots in these trucks isnt there??
oh boy, by the looks of it your a bit confused as to what a 17* even is.... Im also confused as to what your doing, are you rebuilding the engine, changing the hpop or what?

If your rebuilding or swapping engines then swapping in s superduty engine isnt hard at all. the main differences are the dip stick tube bulk head in the oil pan needs reclocked, intake plenums need swapped to the smaller 2", exh manifolds and all turbo stuff, engine mounts and thats about it. couple hours worth of work and your ready to go. now if your just wanting a 17* hpop then just swap the damn thing in.

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post #5 of 14 Old 08-04-2010, 04:07 AM
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Swapping a SD engine into an OBS just for the HPOP is like swapping an OBS body onto a SD chassis just because you want a solid front axle.
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post #6 of 14 Old 08-04-2010, 07:24 PM
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You'd also need to change to an electric fuel pump. The SD 7.3 doesn't even have the cam eccentric to drive a mechanical pump.

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post #7 of 14 Old 08-05-2010, 12:05 AM
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oh boy, by the looks of it your a bit confused as to what a 17* even is.... Im also confused as to what your doing, are you rebuilding the engine, changing the hpop or what?

If your rebuilding or swapping engines then swapping in s superduty engine isnt hard at all. the main differences are the dip stick tube bulk head in the oil pan needs reclocked, intake plenums need swapped to the smaller 2", exh manifolds and all turbo stuff, engine mounts and thats about it. couple hours worth of work and your ready to go. now if your just wanting a 17* hpop then just swap the damn thing in.
17* = 17* HPOP

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post #8 of 14 Old 08-07-2010, 08:28 AM Thread Starter
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I know its just the hpop. But theres oil in the coolant so im thinking its either the oil cooler or a headgasket. SOOOO..... if its a head gasket the engine has 400k on it anyway and was thinking im pretty sure I can find a superduty replacement at about the same price as a Obs replacement. Understand my thought process guys?

05 powerjoke extended cab.
Sct tuned by innovative
Open downpipe
Traction Bars and Suncoast on the way!

96 powerstroke extended cab 7.3
4x4 393000 miles

2005 duramax lly edge/predator stack
14.3 1/4 mile 2.3 60ft roasting tires
limping the trans at 1000ft
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post #9 of 14 Old 08-07-2010, 08:55 AM
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go for any 7.3 and just make sure it hasforged rod and put single shots in for sure. I have never ran splits for a good reason

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post #10 of 14 Old 08-08-2010, 08:09 AM Thread Starter
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Curious as to why everyone loves single shots

05 powerjoke extended cab.
Sct tuned by innovative
Open downpipe
Traction Bars and Suncoast on the way!

96 powerstroke extended cab 7.3
4x4 393000 miles

2005 duramax lly edge/predator stack
14.3 1/4 mile 2.3 60ft roasting tires
limping the trans at 1000ft
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