Are valve covers on the sbo and the bbo the same patterns? I know the 403 is different but I have a 350 and I found some nice M/T valve covers I would like to buy. The only issue is the guy says they are for a big block. Any help on this?

 

Yes they are the same pattern, as a matter of fact, the 403 covers are also the same pattern, just 5 of the holes removed.
If he says it will not fit a small block, he is just uneducated.
Jim

 

As Warhead noted, ALL 1964-1990 Olds valve covers (394 excepted) will interchange. The only physical differences are things like the "notches" on the BBO A-body valve covers. They will still bolt to an SBO, however.

 

Thank you guys very much. Your wisdom is ALLWAYS most appreciated!