I'm not able to get either of these links to work. Any suggesttions?
Thanks, Arthur
See below.
I believe your plug is .460" long and the tapered versions are the same. My head is a factory head. I believe they stopped putting the flat on the heads around 1974 or at least that is when they started using tapered plugs.
Last edited by joyridin'; 08-14-2013 at 04:53 AM..