Today, dollar for dollar, is the 318 faster than the 340 ???

448Scamp said
Go look at what Total Seal offers. There are so many other options today it’s silly to use a moly ring. It’s not durable and even less durable when ring thickness goes under .062 like it should. Thick rings with a moly fill are obsolete.

I see plasma moly, moly, chrome, gas nitride and ductile iron. At least in my bore size. Total Seal doesn't offer anything.