Originally Posted by DMadigan
Gary, are you looking for one like this?...

As Adam has contributed. The A65/A50's are 4 studs in a square shaped sump.


1967 BSA Wasp
1967 BSA Hornet (West Coast Model)
1967 BSA Hornet (East Coast Model)
1968 BSA Firebird Scrambler
1968 BSA Spitfire Mark IV