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  #1  
Old 11-20-2007, 03:14 PM
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Different Year Engine Swap Question

I Have a 1997 F-350 7.3L, found a 2000 7.3L engine to put in my truck, maybe.

What do I have to do for it to work?

What fits and doesn't fit?

Any help appreciated.

Best,
-ultra
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Old 11-20-2007, 03:18 PM
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Im thinking have to swap in all of the obs sensors, injectors and turbo heres a free for ya.
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Old 11-20-2007, 03:27 PM
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The major parts will interchange. The block and heads will work. The accessories will need to be used from your truck. Also, unless you want to do a lot of wire swapping and splicing, you need to reuse your injectors to work with the '97 computer. The exhaust manifolds, up pipes and turbo can be swapped to the newer engine, or with a few modifications, you can use the newer turbo and parts. If you don't have an intercooler, you will have to use the old intake "Y". The old style mechanical fuel pump will have to be reused and the fuel bowl and lines from the old engine will have to be reused. In short, use the block and heads from the new engine and swap everything else off of the old one. The old oil pan will probably need to be used also.
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Old 11-20-2007, 04:43 PM
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Well, that's quite thorough.

That's too bad that I have to reuse my injectors, these other ones are brand new. I had wondered about that. I might be able to get the new computer with the engine. I'll find out tomorrow. It might be a wiring nightmare to swap it over, I dunno... I'll look into the availability of the ECM tomorrow.

I'd like to do some performance stuff within reason and if I'm not mistaken the 2000 had more power output than the 1997. I'd hate to turn it completely back into a 1997 but it man be expensive not to eh?
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Old 11-20-2007, 04:57 PM
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Quote:
Originally Posted by ne_plus_ultra_1 View Post
Well, that's quite thorough.

That's too bad that I have to reuse my injectors, these other ones are brand new. I had wondered about that. I might be able to get the new computer with the engine. I'll find out tomorrow. It might be a wiring nightmare to swap it over, I dunno... I'll look into the availability of the ECM tomorrow.

I'd like to do some performance stuff within reason and if I'm not mistaken the 2000 had more power output than the 1997. I'd hate to turn it completely back into a 1997 but it man be expensive not to eh?
you might talk to tony wildman (Twildman) and see if its posible for him to burn you a chip that will allow you to use the 2000 injectors with the 97 ecm. i dont know if thats posible but its worth looking into. annother option would be to get a do it your self enjector kit and build your self some stage1s
out of your old injectors before putting them into your new engine.
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Old 11-20-2007, 05:24 PM
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Neat, stuff I never heard of before.

I could sell the other new injectors and pay for the whole engine too.

DIY injector kit and stage one injectors sound like a very interesting thing.

I take it that Twildman is on here. I'll look later. I have heard that the newer injectors are bigger, that's the only data I have on the difference.

Time to go sit down with the wife.

Best,
-ultra
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Old 11-20-2007, 07:38 PM
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wildman's website:
www.totaldieselperformance.com
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Old 11-20-2007, 07:40 PM
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Quote:
Originally Posted by ne_plus_ultra_1 View Post
Neat, stuff I never heard of before.

I could sell the other new injectors and pay for the whole engine too.

DIY injector kit and stage one injectors sound like a very interesting thing.

I take it that Twildman is on here. I'll look later. I have heard that the newer injectors are bigger, that's the only data I have on the difference.

Time to go sit down with the wife.

Best,
-ultra

I think the obs injectors are 90cc the early 99 are 120cc and the 2000+ are 130cc and the diy stage ones are 160cc. im sure some one will corect me if im wrong but thats what they are if my memory serves me corectly. if you go with stage1's your going to want custom tuning to get the most out of them any ways and tony is the man when it comes to the Obs trucks
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Old 11-20-2007, 08:54 PM
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A and AA injectors came in the '94-'97 non-california trucks. They are all 90cc injectors and are single shots.

AB injectors came in the '97 cali, and all early '99 trucks. They are split shot injectors meaning they fire a small pilot shot before the main shot. These injectors flow 120-125cc of fuel.

AD injectors are also split shot but flow 135-140cc of fuel due to a slightly longer plunger stroke. These are found in all late '99-'03 Powerstrokes and T444Es.
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Old 11-20-2007, 08:57 PM
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Quote:
Originally Posted by ne_plus_ultra_1 View Post
I Have a 1997 F-350 7.3L, found a 2000 7.3L engine to put in my truck, maybe.

What do I have to do for it to work?

What fits and doesn't fit?

Any help appreciated.

Best,
-ultra
Cali 97?
If so, your OBS PCM will work fine on the 2000 engine. The injectors are splits on both.

Do you have a intercooler on your 97?
If so the turbo system from the 2000 will work fine. Most of the other sensors will have to be swapped to work with the old style PCM.
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