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Old 08-12-2003, 11:43 PM
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which spark plugs?

what spark plugs do u suggest for maximum power and longest life?
88 ford 302 SO

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Old 08-12-2003, 11:50 PM
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autolite double platinum.
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Old 08-13-2003, 12:17 AM
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I changed mine at 30,000 miles because of a miss. Turned out to be bad gas. Car now has 173,000 miles, & I recently reset the gap from .075-.080 back to .040. Car still runs fine. Stock Autolites, same as what came in it.
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Old 08-13-2003, 01:48 AM
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Just installed a set of Bosch +4's and idle now varies only 5 rpm instead of 20. The Autolite Platinums I pulled out were still gapped to spec but had some detonation contamination. If nothing else the car purrs now where it used to lope. I didn't notice an increase in power but it seems the throttle is more linear now compared to before, it used to be real sensitive to the throttle. We'll see how they last.

I still think the price was a rip off.

Vehicle: 94 Taurus SHO.
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Old 08-13-2003, 05:48 AM
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Just about any plug other than a Champion. AC, or Motorcraft prefered, Autolite is no longer FOMOCO and is owned by the same people that make Fram filters.

Vince
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Old 08-13-2003, 08:00 AM
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I would say that it is much more important to have the correct heat range plug than the right brand plug. I usually use AC Delco though.

Chris
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Old 08-13-2003, 08:35 AM
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I use champion race plugs at the track but, on the street, I use v-power plugs....(not splitfire)
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Old 08-13-2003, 09:01 AM
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I like good old Autolite 'cause they seem to last longer and are not that expensive. Plus, the insulators seem to be quite a bit stronger than the competition like they advertise on TV so it is more difficult (not impossible, mind you) for me to break them with my wondrous mechanical skills. Dr. Jacobs has an interesting discussion of plug differences in his ignition book. He claims that AC and Champion chrome plated plugs are of softer material which emits metal ions with the spark that helps older, blow-by engines run. Conversely, black Autolite plugs are harder material which don't emit as many ions which is somehow better for fresh, tight engines.

In the final analysis it's like motor oil, oil filters, anti-freeze, etc., etc. Everyone has a preference and it probably doesn't make a hill of beans difference which brand you use. It does make a difference which heat range you use though, so pay attention to that.
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Old 08-14-2003, 01:57 PM
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NGK v-groove

Platinum sux IMO, I've posted about them previously,

Just dont' use a champion in a chev block, terrible knock.

Hollywooding
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