@oi81b4uu812b4 .....So whats the inside scoop on the core numbers? The smoother resto 340 castings used the new sand and the production motors got the ****? Sound about right to me. Seems they would be sifting out the crap with every recycle. Wonder if the lower production numbers of the IH cast 318's had any better surface finish. That would be a great field trip, to a casting plant.
