Engine ???'s - Ford Powerstroke Diesel Forum

 
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post #1 of 5 Old 08-13-2009, 12:15 PM Thread Starter
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Engine ???'s

Howdy Ya'll!

I have a quick questions about my OBS:

How hard is it to swap out the 95-97 OBS powerstroke for a 99.5-03 7.3l powerstroke?? What are the pros and cons to doing the switch?? What are some things I should know about a swap of this type?? Will the E4OD bolt up or would I have to change to the 4R100??

I'm going to have to pull the engine to replace the oil pan and I was just entertaining the idea of doin the swap if it wasn't too involved and/or too costly.

Thanks!



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post #2 of 5 Old 08-13-2009, 03:51 PM
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Pros:
17* HPOP
Newer turbo
E4OD bolts up

Cons:
swap injectors, or custom chip for splits
depending on SD engine year, may have PMRs

Bill

1996 F250 SC/SB 4X4 XLT
1997 F250 RC/SB 2WD project
2008 F350 CC/LB 4X4 DRW Lariat, 3" cow catcher mod
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I still say that those Dodge mirrors have as much business on a OBS Ford as yoga pants have on a fat chick...my .02
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post #3 of 5 Old 08-13-2009, 07:00 PM Thread Starter
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Originally Posted by alberta 7.3 View Post
Pros:
17* HPOP
Newer turbo
E4OD bolts up

Cons:
swap injectors, or custom chip for splits
depending on SD engine year, may have PMRs
What are pmr's?? Are the engine mounts in the same place on both engines?? Would I have to swap the ecu from the donor truck too??

It sounds like it isn't tooo hard..... just gotta have some patience!



2012 F-150 CC/SB 4x2 Lariat

2005 F-250 CC/LB 4x4 Lariat (Blue/Tan)- Traded In

2005 F-350 CC LB 4x4 Lariat (DSM/Tan) ---> RIP 7/16/2010 (Stolen)

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Maybe Choctaw will let you start the LSP Itty Bitty F1Fitty Daycare Chapter????
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post #4 of 5 Old 08-13-2009, 07:09 PM
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You'll have to re-use the OBS mounts. The bolt holes on the block are the same.
PMR=powdered metal connecting rods. Pressed powder. Early SD's and OBS's have the forged rods. PMR's become unstable and will window the block when you exceed approx 400 HP. If you re-use the OBS injectors, there won't be any PCM issues. If you use the SD split shots, you'll probably need a chip such as a TW with tunes to run splits. I'd avoid swapping PCM's these days, especially with different transmissions 4R100/E4OD, and who knows what else.

Bill

1996 F250 SC/SB 4X4 XLT
1997 F250 RC/SB 2WD project
2008 F350 CC/LB 4X4 DRW Lariat, 3" cow catcher mod
2008 Ranger SC FX4
Quote:
Originally Posted by weareweird69 View Post
If your posting pictures bill, everyone dim their screens, that CAT YELLOW is bright
Quote:
Originally Posted by Fordman247365 View Post
Is there anything you DONT take apart and **** with?
Quote:
Originally Posted by JJFLASH View Post
I still say that those Dodge mirrors have as much business on a OBS Ford as yoga pants have on a fat chick...my .02
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post #5 of 5 Old 08-14-2009, 06:48 AM
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im not badmouthin powerstroke. but if i were you id swap a 12 valve in er. that what i will be doing to an f350 im gettin for nothing but then again that thing has 400,000 on it thats the most iv ever heard on a powerstroke.

1996 White F-350 7.3 Regular Cab

5 Speed Manual
33" BFG mud terrains
6" Miters
afe intake
TW
17*HPOP
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