Spark plugs 5.0 HO -

5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

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Old 01-27-2011, 04:07 AM   #1
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Default Spark plugs 5.0 HO

I got an 5.0 HO out of an '86 Mark VII that i'm putting in my 1970 Mustang coupe. I have removed all of the emission crap and also the EGR stuff. Because all of this has been removed, i suspect that i also should use other sparkplug with a different degree.

Here's the question: which sparkplugs should i get?

Being in the Netherlands, i can get Bosch and NGK very easy. So i would prefer one of these brands.

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Old 01-27-2011, 10:24 AM   #2
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dont run bosch, or anything platinum for that matter. if the mark 7 engine is the same as the 86 stang engine, you will need autolite 2545's (i think)
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Old 01-27-2011, 03:59 PM   #3
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Do not use Bosch, Ford rejects them.
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Old 01-27-2011, 06:53 PM   #4
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Bosch makes great O2 sensors, but terrible spark plugs.
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