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Old Oct 2, 2020 | 09:28 PM
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From: Itinerant
Sparkplugs

Does the new 7.3 have 8 plugs or is it like the 6.2 with 16 plugs?
 
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Old Oct 2, 2020 | 09:58 PM
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8 Spark Plugs in the new 7.3.
 
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Old Oct 3, 2020 | 08:10 AM
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Thank you, I thought that looking at the pictures of the engine just wasn't sure. I do hate changing 16 plugs on the 6.2.

Not that I need the HP of the 7.3 but can you have to much power, I sure liked the V10 with 4.30 gears and this engine seems like a great replacement by the posts on the forum.

 
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Old Oct 3, 2020 | 07:38 PM
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Originally Posted by scraprat
Thank you .... I do hate changing 16 plugs on the 6.2.

And thank you sir for having pointed this out. It never occurred to me to ask how many plugs were on the 6.2. I found some videos on changing 6.2 plugs (oh my, no thanks) and computed the cost for parts alone at about $600 for coils, wires and plugs. I also wanted to get away from the corrosion problem the coil boots have on my 5.4L F-150, which seems to follow over to the 6.2L topside plugs. The bottom side plugs seem unprotected from moisture.

That gets me off the fence. 7.3L and 10 speed. I think even an old dude like me could change those plugs by myself. The coil packs located away from heat should last longer and not likely to be corrosion problems either.

Thanks for the heads up.
 
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Old Oct 4, 2020 | 08:12 AM
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Out of all the preventive maintenance jobs on the truck the 16 plugs sux.

If for no other reason having just 8 plugs would have me looking for a 7.3. I keep reading this forum I might think I need a new truck.
 
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Old Oct 4, 2020 | 08:58 AM
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As a follow on question, how hard is it to get to the 7.3 plugs ?
 
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Old Oct 4, 2020 | 11:13 AM
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Originally Posted by scraprat
Out of all the preventive maintenance jobs on the truck the 16 plugs sux.

If for no other reason having just 8 plugs would have me looking for a 7.3. I keep reading this forum I might think I need a new truck.
I agree. I do my own maintenance and I really like the relative simplicity of the 7.3.
 
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Old Oct 4, 2020 | 01:01 PM
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Originally Posted by wiskeyVI
As a follow on question, how hard is it to get to the 7.3 plugs ?
From the pictures I have seen of the 7.3L engine the plugs are obvious line of sight with plenty of room. Although you might need a box to stand on, it is a super-duty.
And as a bonus, no coil boots, which can be difficult to extract. Just a rather fancy spark plug wire.

Got to be easier than the 6.2L
 
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Old Nov 28, 2020 | 08:23 PM
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Originally Posted by KU4OJ
From the pictures I have seen of the 7.3L engine the plugs are obvious line of sight with plenty of room. Although you might need a box to stand on, it is a super-duty.
And as a bonus, no coil boots, which can be difficult to extract. Just a rather fancy spark plug wire.

Got to be easier than the 6.2L
There is plenty of room to get to the plugs in the 7.3. In fact it would be easy to swap headers on it too.
 
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Old Nov 29, 2020 | 08:52 AM
  #10  
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I also do my own mechanical work which help sway me towards the 7.3.
My Hemi's required laying across the engine bay to get to plugs at the firewall.......3 hrs, sore neck and lots of profanity.
 
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Old Nov 29, 2020 | 05:24 PM
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But has anyone actually done the job? Some of these guys that put 100,000 miles on a truck in a year should be due for a "tune up" about now.

I figure if you can do this job yourself, and the coil packs do not fail (and they should last longer on this engine due to location) then over the course of 200,000 miles or so you could save enough money to pay for the $2045 option for this engine. Not to mention it's supposed to get a little better fuel economy.
 
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Old Dec 7, 2020 | 04:52 PM
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Ease of service for plugs, belts, hoses, alternator etc is a strong point for this engine. I plan as usual to do all that myself.
 
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Old Jan 26, 2021 | 10:57 AM
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Remove and install plugs

Due to Fords 100,000 spark plug change, And the problems getting the plugs out of some of the V10 engines ..
Also not wanting to deal with galvanic corrosion problems ..
I pulled the plugs and put never seize on the threads and reinstalled them .. The first weekend I owned the truck ..
The right front plug was the hardest 1 for Me to get at .. The rest were a bit of a reach .. I'm 5'9" needed a step stool for the job ..
Hopefully I will have no problems when tune up time comes along ..
 
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Old Jan 26, 2021 | 11:14 AM
  #14  
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8 plugs in the 7.3

I too do a very light application of Permatex,silver Anti-Sieze when I changed plugs in my aluminum head 5.0 and they have been easy to remove. I will do the same for my new 7.3 with iron heads. I use the anti seize on virtually anything I service - especially marine engines and have never had a bolt seize from corrosion after using it.
 
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Old Jan 27, 2021 | 07:05 PM
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I think Godzilla has Cast aluminum heads . Correct me if I am wrong
 
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