Professor Fate
Push the button, Max...
Does anybody have a quick and easy way to tell if a '66 318 poly uses 3/8" or 3/4" reach plugs? Both are used. Don't say "take the old ones out and look at them"- after this many years, who knows if the right ones are in it now. Short of pulling a plug and trying to get in there and measure the depth of the threads in the head, is there a quick identifier as to which plugs a particular head takes?
Thanks guys.
Thanks guys.