GoMog can indeed be a useful source of information, but you do have to be a bit careful - it was on GoMog that we found the horrific advice to put a metric hydraulic fitting into an imperial female fitting on the basis that 1 / 8" x 24tpi is quite close to 6mm x 1mm pitch!
But you are right, the GoMog webmaster (a chap called Lorne Goldman) has spent many years collecting stuff up from all around the world to populate it, and he deserves recognition for that. It's especially good for early (pre-BMW V8) info.
Last edited by Hamwich; 06/08/15 03:25 PM.