Just curious what everyone else has tried and what has worked well. I know you can't go wrong with motorcraft replacements, but would like to hear what others have done. Out of everything I have read, copper plugs seem to work the best. If you guys don't mind, plug type/part number and gap would be great. I am interested in what gives good mpg and throttle response.

 

Autolite Coppers...Gapped @ .044"......Other than Motorcrafts at the same gap...

Hands down...

 

Wow, got a response a lot quicker than I expected to, thank you. What made you decide on the autolites?

 

yep.....

Autolite was OE before Motorcraft

 

Cheap....Gets the job done......And fit in with the thermal/burn range......

Each metal allows a different temp* spark....Platinums are a hotter plug than coppers...Obviously....

Motorcraft/Autolite's have given me the best perf/usage per $.....

Just my $.02....

(Btw, check the moniker under my name.....FTE Batman.....I'm ALWAYS on....Only gone for a lil while at a time...)

 

On my 1986 [carburated], I use Motorcraft SP435 [copper], which is specified on 1987 and later [fuel injected] gapped @ .052" since I did the Duraspark conversion.

 

Spark plug - Wikipedia, the free encyclopedia

Have a read there.....Explains hot/cold plugs, etc...

 

Thanks for all the responses guys! I might try some Autolites on my next plug swap.

 

Good...Just be sure to gap them before they go in...

Sometimes, if the box has been dropped, etc...The electrode gets mashed together.......And will cause issue...

A 3 second gap/inspection will save 30 of headaches...

 

autolite, i wouldn't think i was buying crap if i went with motorcraft though

 

motorcraft

 

NGK...if you want to feel exotic.

 

I don't think NGK would do good in fords Big cubed engines, And definitely not the 300?

 

I personally hate NGk's, and will not run them in anything I own. They are like a fram oil filter to me.

 

Fram and Autolite are made by same company,