Duffin Machine in San A. has done my block and crank. They run Bonniville and mostly do very expensive industrial engines. Very nice people and seem reasonable to me!
I have heard Calvert Automotive in Denton (north of DFW) was the place to go for flathead work and has been for a while. But I've also heard of and seen them screwing up other motors....so who knows.
Confused, come to the EFV-8 meeting this Sunday, 2:00 PM KOA Campground over by the AT&T Center and ask around. Join the club and help us work the NB Swapmeet. Don't worry, not all are purists in the club. My '36 Sedan has a 283 in it. Lou.