I have several fuel pumps for the 292 that are "bolted" together. It is my thought that these are early production fuel pumps. That is, it is easier (cheaper) to, swage, crimp, or press something together than it is to machine it fasten together with screws, and bolts. I believe kits are still available to rebuild the pumps that are "bolted". I know that The Filling Station had them. Blame it on the bean counters.
Larry
