The Ford Barn

TRP · 12-05-2017, 08:34 PM

Hello Gang,

My car is currently running Champion C-16 C plugs. I pulled them out and they look a little worse for wear. The center electrode is noticeably worn out near the ground electrode. I picked up some Champion 3X's as recommended here.

I am running a C head (with the unique water pump) on an otherwise stock motor. Should I have any concern with such a swap?

I posed this question on the original 'which plug do you run' thread. It looked like it was going to get lost in a hurry. I moved it here.

Thank you for your time,
Ted

ursus · 12-05-2017, 10:24 PM

With a C Head you are still running a low compression engine (at 4.6/1). The C16C plugs were a replacement for the C-4 plugs made for the C-head which were a replacement for the 3X plugs. You will be fine with the 3X plugs.

TRP · 12-05-2017, 10:26 PM

Thank you, Sir!

I also just found this informative thread:
https://www.fordbarn.com/forum/showthread.php?t=12582

Tom Wesenberg · 12-06-2017, 07:24 AM

And don't throw away any plugs that still fire OK, especially the 3X plugs. When the center electrode wears to a rounded end, just file it flat again. The plugs spark easier from a sharp edge than they do from a rounded tip.

Ron in Quincy · 12-06-2017, 09:29 AM

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make sure you have at least .025 clearest between the roter tip and the contacts in the distributor body, this provids a mutch hotter spark.

12-05-2017, 08:34 PM	#1
TRP Senior Member Join Date: Mar 2017 Location: San Francisco, Bay Area Posts: 101	Champion C-16 C VS Champion 3x? Hello Gang, My car is currently running Champion C-16 C plugs. I pulled them out and they look a little worse for wear. The center electrode is noticeably worn out near the ground electrode. I picked up some Champion 3X's as recommended here. I am running a C head (with the unique water pump) on an otherwise stock motor. Should I have any concern with such a swap? I posed this question on the original 'which plug do you run' thread. It looked like it was going to get lost in a hurry. I moved it here. Thank you for your time, Ted

12-05-2017, 10:24 PM	#2
ursus Senior Member Join Date: May 2010 Location: Oregon Posts: 1,462	Re: Champion C-16 C VS Champion 3x? With a C Head you are still running a low compression engine (at 4.6/1). The C16C plugs were a replacement for the C-4 plugs made for the C-head which were a replacement for the 3X plugs. You will be fine with the 3X plugs.

12-05-2017, 10:26 PM	#3
TRP Senior Member Join Date: Mar 2017 Location: San Francisco, Bay Area Posts: 101	Re: Champion C-16 C VS Champion 3x? Thank you, Sir! I also just found this informative thread: https://www.fordbarn.com/forum/showthread.php?t=12582

12-06-2017, 07:24 AM	#4
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Champion C-16 C VS Champion 3x? And don't throw away any plugs that still fire OK, especially the 3X plugs. When the center electrode wears to a rounded end, just file it flat again. The plugs spark easier from a sharp edge than they do from a rounded tip. Last edited by Tom Wesenberg; 12-06-2017 at 09:51 AM.

12-06-2017, 09:29 AM	#5
Ron in Quincy Senior Member Join Date: May 2010 Location: Quincy, CA. Posts: 1,708	Re: Champion C-16 C VS Champion 3x? Sponsored Links (Register now to hide all advertisements) make sure you have at least .025 clearest between the roter tip and the contacts in the distributor body, this provids a mutch hotter spark.