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7.3L / 6.8L V8 Gasoline Engines Discuss the new 7.3 and 6.8L Gasoline V8s

Sparkplugs

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Old Jan 28, 2021 | 09:59 AM
  #16  
Pacific Fisher's Avatar
Pacific Fisher
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Good catch thado, yes cast iron block, aluminum heads. All the more reason for a very light application of silver permatex anti seize when changing plugs.
 
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Old Sep 12, 2021 | 10:06 AM
  #17  
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2 questions:
Am I correct that the Permatex,silver Anti-Sieze is conductive for the DCV?
Does the 7.3 gas have a bed plate like the 6.0 TD to stiffen the bottom of the block?
THx
 
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Old Sep 14, 2021 | 02:08 PM
  #18  
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Don't know about conductiivity .. Thought all never seize
forumlas conducted electric current ..
No bed plate, Long block skirt with 6 main bearing bolts ..
4 from the bottom 2 from the sides like 60's 427 side bolt !!
 
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Old Sep 15, 2021 | 06:31 AM
  #19  
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Yes, Permatex Anti Seize is conductive.
 
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Old Feb 5, 2023 | 08:13 PM
  #20  
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Anyone have the torque specs for the 7.3 spark plugs?
 
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Old Feb 5, 2023 | 08:26 PM
  #21  
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Originally Posted by scraprat
Anyone have the torque specs for the 7.3 spark plugs?
It would be interesting to know what the real torque specification is, as opposed to 1/4 turn past snug or so as I usually do.
 
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Old Mar 1, 2023 | 10:18 AM
  #22  
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Correct. 7.3L Godzilla has cast aluminum heads and a cast iron block.

Cleetus McFarland has some good videos showing the Godzilla with one of their project cars.
Its a beast!

7.3L content at 7:30+


In the Super Duty, the 7.3L is very very easy to access items like spark plugs. You can also very easily access the exhaust manifolds.....soooooo much room in the engine compartment with the 7.3L. It actually looks kinda small in there! A push rod V8 is just so compact vs the SOHC 6.2L or DOHC 5.0L (Mustang, F-150) that I'm used to working on.

I've got a 7.3L Super Duty and absolutely love it. I do all my own maintenance.
 
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Old Mar 1, 2023 | 01:38 PM
  #23  
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I stopped at a Ford dealership and asked for the torque specs for the sparkplugs, he looked it up and showed me that it is 133 inch pounds.
 
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Old Mar 8, 2023 | 01:32 PM
  #24  
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Originally Posted by scraprat
I stopped at a Ford dealership and asked for the torque specs for the sparkplugs, he looked it up and showed me that it is 133 inch pounds.
133 in-lbs is 11 ft-lbs. Sounds about right.
 
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