Are you talking about the retainers or the locks/keepers????
The retainers go on top of the springs
The locks/keepers go AROUND the valve stem to "lock or keep" the retainer and spring in place.
NO on the valve locks from a Buick 350 or 455 fitting a V6, the Buick V8 uses 11 degree locks, so its a no go.
thank you for the info. I have done several GM more chevy and was unaware the 11 degree was used on the 455. My bad
Buickkruss I do have plenty of the correct keepers and retainers if needed for a Buick V6.