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wellcraft17 · 10-28-2021, 01:28 PM

f10 is on the cold end of the scale and F14Y, 870 is on the high end. f10s were used on some Ford engines in the mid 50s. Yes, higher the number hotter the plug for Champion. I have nine boxes of new F10s and thought I would try a set, so just threw out a question to see if anyone has used them in their Y block and how did they run? I do have a 1958 master Champion plug catalog and it shows some Ford trucks and tractors used the F10 plugs

10-28-2021, 01:28 PM	#4
wellcraft17 Senior Member Join Date: Feb 2012 Location: Tampa fl Posts: 133	Re: F10 champion plugs f10 is on the cold end of the scale and F14Y, 870 is on the high end. f10s were used on some Ford engines in the mid 50s. Yes, higher the number hotter the plug for Champion. I have nine boxes of new F10s and thought I would try a set, so just threw out a question to see if anyone has used them in their Y block and how did they run? I do have a 1958 master Champion plug catalog and it shows some Ford trucks and tractors used the F10 plugs