I just removed my 920 heads off the 66 273 dart. I'm trying to thread to help id the pistons. They have 4 valve reliefs and say 040 on the dome. I'm really mostly curious what the 040 means and it there is any way to tell if they are stock
Sweet! So my 273 has the good 920 heads, is overbored 40, this is nice... I'm guessing it doesn't have a stock cam, can I ID the cam with it still in the engine?
Way to bring me back down to earth 65val.
Does this mean stock head gaskets won't work?