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Old Jul 28, 2021 | 05:48 PM
  #1  
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real dumb question

03 F350 7.3L
Searched as best I could and couldn't seem to find an answer.
Would the above 7.3L have a 8 or 10 bolt head?
Thanks.
 
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Old Jul 28, 2021 | 07:20 PM
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Are you talking about the intake plenum bolt count? If so read below

If that's the engine it left the factory then yes you have a 10 bolt intake plenum the only years that the 8 bolt came IIRC were from 94.5 to early 95.
 
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Old Jul 28, 2021 | 07:52 PM
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Originally Posted by z31freakify
Are you talking about the intake plenum bolt count? If so read below

If that's the engine it left the factory then yes you have a 10 bolt intake plenum the only years that the 8 bolt came IIRC were from 94.5 to early 95.
It has the original engine. Yes, the plenum bolt count and thank you very much.
 
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Old Jul 28, 2021 | 08:10 PM
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And just to make sure count them.
 
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Old Jul 28, 2021 | 10:33 PM
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LOL...., I will... Thanks again
 
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Old Aug 2, 2021 | 09:14 PM
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On a roll with odd questions. Trying to order front springs.(4x4). Truck has the heavier rated springs over the 4800 in 2003. IIRC either 5200or 5400LB rating on the front
2 leaves now.
Would anyone know what rating would be close to the original. Plow truck so more concerned with it handling weight over ride.
Too many choices between number of springs and weight rating on each spring.
Guess I'm asking if anyone knows off hand if 2030lb,2630lb or 3250lb rating would be the right springs for the 03 f350 with the heavy duty front springs.
 
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Old Aug 3, 2021 | 06:40 AM
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Originally Posted by Edkajo
On a roll with odd questions. Trying to order front springs.(4x4). Truck has the heavier rated springs over the 4800 in 2003. IIRC either 5200or 5400LB rating on the front
2 leaves now.
Would anyone know what rating would be close to the original. Plow truck so more concerned with it handling weight over ride.
Too many choices between number of springs and weight rating on each spring.
Guess I'm asking if anyone knows off hand if 2030lb,2630lb or 3250lb rating would be the right springs for the 03 f350 with the heavy duty front springs.
There is a lot of bad information regarding those front springs but here is what I have found. 'V' code springs are found on most F250's and the plow spring would be an 'X' code. The spring code for your truck as manufactured is on the sticker on the driver's side door jam. The Ford springs are Ford specific and the aftermarket springs advertise themselves as being equal but they are not. That is not to say that they are insufficient, that would depend on your application. Many of us (including myself) have gotten springs from https://www.autoandtrucksprings.com/ and they are very knowledgeable and fair priced.
 
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Old Aug 22, 2021 | 04:23 PM
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Another one that I can't seem to find an answer for before digging into this. Trying to have as much as possible on hand before I tie up the truck.
Replacing the pipes/ exhaust as well. Can't find a stock size 3 1/2'' down pipe. Ordered a 4". Question is about the clamp at the turbo.
Can't seem to find any sizes when searching them. What do I need?? Thanks.
 
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Old Aug 22, 2021 | 04:30 PM
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Originally Posted by Edkajo
Another one that I can't seem to find an answer for before digging into this. Trying to have as much as possible on hand before I tie up the truck.
Replacing the pipes/ exhaust as well. Can't find a stock size 3 1/2'' down pipe. Ordered a 4". Question is about the clamp at the turbo.
Can't seem to find any sizes when searching them. What do I need?? Thanks.

If you're talking about the downpipe clamp...here's a ford part number for the clamp...clamp size will be the same regardless of pipe size.

XC3Z-5A231-AA

 
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Old Aug 22, 2021 | 06:42 PM
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Originally Posted by Edkajo
Can't find a stock size 3 1/2'' down pipe.
Because they're all 3" stock.


 
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Old Aug 23, 2021 | 06:04 AM
  #11  
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Originally Posted by cleatus12r
Because they're all 3" stock.
Thanks. Sorry about that. Seems the smallest I could find for the 99-03 SD was 4''.




 
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Old Aug 23, 2021 | 06:26 AM
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Originally Posted by F0rdc0wb0y
If you're talking about the downpipe clamp...here's a ford part number for the clamp...clamp size will be the same regardless of pipe size.

XC3Z-5A231-AA

Thank you! Yes, that was my question , the band style clamp size. Wasn't sure and was unable to find the opening size on the turbo or the stock pipe. The part number is very helpful. Will order that.
Thanks again....
 
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Old Nov 16, 2025 | 05:19 PM
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From: Boon docks.
Originally Posted by z31freakify
Are you talking about the intake plenum bolt count? If so read below

If that's the engine it left the factory then yes you have a 10 bolt intake plenum the only years that the 8 bolt came IIRC were from 94.5 to early 95.
My "96" has the 8 bolt plENUMS. Ill have to check the build date to confirm month.
 
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