The Ford Barn - View Single Post

Daves55Sedan · 10-28-2021, 05:03 PM

Before they discontinued them, I used Champion UF-11YC spark plugs in my 272 and later in my 292. After that, it seems like they recommended using Champion F-14Y plugs, but all that happened decades ago. Never even heard of an F10 being available, not in my area. They all have the same thread and seat which mates the Y-block heads, but the higher the number, the hotter the plug.
Never had a problem with any of the ones I used. If the 11's were still around, I would still be running them today. Same plug can be used on the 223 I-block 6-cyl, so no matter which car I'm tuning up, I can buy the same plugs.

10-28-2021, 05:03 PM	#7
Daves55Sedan Senior Member Join Date: May 2010 Location: Granite City, Illinois Posts: 3,008	Re: F10 champion plugs Before they discontinued them, I used Champion UF-11YC spark plugs in my 272 and later in my 292. After that, it seems like they recommended using Champion F-14Y plugs, but all that happened decades ago. Never even heard of an F10 being available, not in my area. They all have the same thread and seat which mates the Y-block heads, but the higher the number, the hotter the plug. Never had a problem with any of the ones I used. If the 11's were still around, I would still be running them today. Same plug can be used on the 223 I-block 6-cyl, so no matter which car I'm tuning up, I can buy the same plugs.