302 spark plugs
Logistics Pro
Joined: Oct 2007
Posts: 4,865
Likes: 497
When in doubt, the best replacement is typically OEM. That means Motorcraft. In the case of the 302, there are a lot of aftermarket parts. I'm currently running Motorcraft in my 302. But I'm one of those kinds of guys that will put in something else, if I can save a buck. I just bought some E3 spark plugs for my 256 (4.2L V6). Has anyone tried those?
Senior User
Joined: Apr 2007
Posts: 167
Likes: 0
From: eastern connecticut
put in what the book says dont go by anything else, Fords use motorcraft or autolite plugs. The e3 plugs say they shoot the spark directly into the mixture, uh dont all spark plugs do that. Dont waste your money, they dont improve anything. Just like the bosch plugs are junk in anything except foreign cars. Well this is my 2 cents anyways.
Der Postmeister
Joined: Sep 2006
Posts: 6,859
Likes: 560
From: Long Beach, Calimexiforia
Uh, No they don't all do that! W/ the E3's, I've never used em (probably never will) but have heard pleasant thing's about em. They do project better than a standard designed, stock gap plug & they are Copper cores! I'd say if your running a stock gap (they're pre gapped & must stay that way) give em a shot & tell us what you think.
Spark Kernel size/ exposure is what you want (I want anyway). You get it by increasing your stock gap size (requires an ignition system upgrade). I also mod the outer electrode (side gap).
Performance Unlimited 4-Wheel & Off Road Center - Hartford, Wisconsin - USA Technical Documents
But after the upgrade, just increasing your gap size alone (w/o sidegap) by 20-25% goes a long way.
http://fullsizebronco.com/forum/show...ht=timing+bump
Spark Kernel size/ exposure is what you want (I want anyway). You get it by increasing your stock gap size (requires an ignition system upgrade). I also mod the outer electrode (side gap).
Performance Unlimited 4-Wheel & Off Road Center - Hartford, Wisconsin - USA Technical Documents
But after the upgrade, just increasing your gap size alone (w/o sidegap) by 20-25% goes a long way.
http://fullsizebronco.com/forum/show...ht=timing+bump
Der Postmeister
Joined: Sep 2006
Posts: 6,859
Likes: 560
From: Long Beach, Calimexiforia
I wouldn't run Bosch "Anything" in our trucks. Gap stretching Copper Cores have been around for years. As long as your ignition system is up for it.
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New User
Joined: Jul 2010
Posts: 19
Likes: 0
Goodevening everybody
Yesterday I obtained Autolite sparkies for my truck; I think the Accel ones are misfiring. Next week I gonna change them. The truck rides nice, but while on the accelerator there are some misfires.
keep you posted
best regards Ton
Yesterday I obtained Autolite sparkies for my truck; I think the Accel ones are misfiring. Next week I gonna change them. The truck rides nice, but while on the accelerator there are some misfires.
keep you posted
best regards Ton
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