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Recommend spark plugs and coil boots?

Old 03-07-2017, 10:20 AM
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sweetbeats
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Default Recommend spark plugs and coil boots?

I need to get some new spark plugs and coil boots for my 2001 GT.

I don't want to break the bank, but I also want to make sure what I get is up-to-par with the fact my Mustang is supercharged and likely needs or would benefit from something better than budget-grade.

I usually shop at Oreilley's. Can anybody make a recommendation?
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Old 03-07-2017, 06:02 PM
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WJL
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Search spark plugs and cops on this forum, there is a guy "Cliffy" who has researched this topic, you will not find a more comprehensive write up any where.
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Old 03-08-2017, 10:01 AM
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Very cool. Thanks.

I think I found the thread you are talking about:

https://mustangforums.com/forum/4-6l...op-tester.html

So with my supercharged GT it looks like I should just go with stock/factory spec plugs and stick with Motorcraft coils and plug boots, yes?

Anybody know a good source for those parts? I'm seeing prices of around $275 for a set of coils and boots. Maybe I don't need to replace them all, but 1 has been sitting in coolant, another the conductor spring is all rusty, those two have been misfiring, and third has a broken connector on it. The car has 62,000 miles on it. I'm right to be wanting to just get a full set of new coils, boots and plugs, right?
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Old 03-08-2017, 02:49 PM
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I think there is another post on spark plugs, I think rock auto has motor craft COP's for a reasonable price, but you will have to check

Check you local ford dealer as well sometimes and i mean sometimes you can get a good price.
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Old 03-08-2017, 06:59 PM
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I'll check Rock Auto.

Good suggestion in checking the dealer out...I called and unfortunately the COP with boot is $76 each.
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Old 03-28-2017, 10:03 PM
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Late Model Restoration has Motorcraft COPs in a kit of 8 for $209.
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Old 03-29-2017, 10:38 AM
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Thanks for the reply. Unfortunately that looks like it's for a set of 4 COPs:

https://lmr.com/item/LRS-DG508-K/mot...-plug-kit-9904
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Old 03-29-2017, 10:03 PM
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Originally Posted by sweetbeats
Thanks for the reply. Unfortunately that looks like it's for a set of 4 COPs:

https://lmr.com/item/LRS-DG508-K/mot...-plug-kit-9904
Well aren't I lacking in attention? Sorry about that.
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Old 04-08-2017, 05:08 PM
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So I'm searching and I see two different part numbers for the COPs:

DG 491
DG 508

Anybody know what if any difference there is between these two?
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Old 04-10-2017, 05:28 PM
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You want the DG 508
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