I thought these were regular Chevrolet stuff, but I guess not. I know these two came off Opel Chevrolet small-block engines. The big one is from a -66 283 and the small one is from a -74 327. I once had a -72 Opel 327, and it had one like the smaller one to.
There are some numbers cast into the smaller one, but it isn´t readable. I think I can see the Opel logo though. I know the logo is on the powersteering pump-pulley that is made from sheetmetal.
There aren´t that many Opel Admiral and Diplomat autobahn racers around, so I guess I´ll put them back on the shelf, unless they were used on Chevies aswell.
Anders