The Ford Barn

rhpope · 10-04-2013, 02:16 PM

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Anybody know what these were used for as in application wise to look up something similar that is new? The ground electrode is inside the steel shell, not in the usual location welded to bottom flat of the threaded section.

Identical to this K-3 in the picture where they were being using in a marine application. The J-3 is probably just a difference in heat range.

Look at the fourth post with the pictures:
http://johnsoldmercurysite.com/phpBB...hp?f=17&t=4829

The J-3 plugs I have had been installed in 60HP Flathead with factory aluminum heads.

10-04-2013, 02:16 PM	#1
rhpope Junior Member Join Date: Aug 2010 Location: North Carolina Posts: 23	Champion J-3 plugs Sponsored Links (Register now to hide all advertisements) Anybody know what these were used for as in application wise to look up something similar that is new? The ground electrode is inside the steel shell, not in the usual location welded to bottom flat of the threaded section. Identical to this K-3 in the picture where they were being using in a marine application. The J-3 is probably just a difference in heat range. Look at the fourth post with the pictures: http://johnsoldmercurysite.com/phpBB...hp?f=17&t=4829 The J-3 plugs I have had been installed in 60HP Flathead with factory aluminum heads.