I'm working on a 97 grand marquis and going through the ignition system, Im wanting to upgrade the coil packs and wires. Thinking about the msd packs with the ford racing wire set. I am confused however as to which spark plugs would be the best to get for this engine. I know a lot of y'all are partial to the motorcraft or autolite plugs..... and I might add I am planning a pi upgrade by summers end if that matters.
Not A Stang But Still A 4.6.......
- Thread starter Phatt_daddy
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The Motorcraft is fine in my opinion. Stick with copper plugs. I'm not a big fan of the Autolite plugs since the ones I ahve seen are made in China.
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