Best Plugs??

[cjman15]

What do you recommend on using in your 5.0? I'm replacing my sparks here soon and I have autolites in it now... is there anything better? what do you use? thanks!

 

[92Frankenstein]

NGK all the way, I love em, but this is a real touchy subject, mostly depends on YOU!

 

[bock]

With the stock engine i was using original ford spark plugs,they solve a pinging problem that i had.

 

[SlowGT]

Autolite 25's

 

[Mustang5L5]

Autolite 25's = Motorcraft 32c's = best plug for a near stock 5.0

 

[RiceCooker5.0]

I think autolite makes motorcraft, thats what the guy at the ford parts counter said.

 

[Mustang5L5]

I think autolite makes motorcraft, thats what the guy at the ford parts counter said.

Autolite used to make a lot of parts for Ford. Back in the 60's the Carbs on some Mustangs were made by Autolite.

Now they just do the spark plugs

 

[hllon4whls]

I like autolites and the motor crafts. Just stay away from a platnium plug for a performance application. The copper plugs wear, but they conduct spark better.

If your ignition is up to it you can go with an autolite ar133. It has a cut back ground to increase the spark area shooting towards the piston (that was eloquent). Dont expect 20 hp from plugs, but do expect them to make a good combo possible.

 

[ratrapp]

another vote for autolites.on stock or n/a engines your not going to find magical hp with a plug change unless you had bad plugs to start with.i wouldn't fool too much with heat ranges either unless you just like experimenting(i wasted too much money and plugs)