Ford V-10 sparkplugs (SP 479 or AP 103)
I bought a old X with the 6.8 and wondered what's the best sparkplug to run. I seen Motorcraft SP 479 and Autolite AP 103. Any suggestions? I won't change them, I'll let the mechanic I use change t...
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I just did my plugs on 08 6.8. I was scared to death that they were 2 piece plugs but the weren't. I watched videos on youtube and just took time.. I used motorcraft plugs.
