Posted by Kaegi [76.22.23.236] on Tuesday, August 18, 2015 at 19:05:58 :
In Reply to: Re: Valve spring questions for you 218/230 gurus posted by daveyKin Pa [72.92.59.79] on Tuesday, August 18, 2015 at 16:42:24 :
fortunately I have never seen a mopar flathead without the hardened seats. They all went hardened in about 1933 and there were 2 levels of insert. One tougher than the other. Some even had sodium filled valves. But out of all the flathead mopars I have rebuilt none ever needed new seats.