Quote:
Originally posted by Richard Farrant
The Champion 6-M was a US made plug, I looked it up in a very old KLG book and it equates to a KLG M30. This plug is an 18mm thread with a reach of 12.5mm, not taper seated either, just conventional washer type.
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The problem of not having a scale to the picture!
That's a NGK AB2, somewhat odd in having a smaller hex than usual and being a very soft plug. Available from the net, eg:
http://www.camskill.co.uk/products.p...8b16s1221p4345
R.