Can Anyone Identify This Pulley ?

[Fast Fords]

I have a 3 grove pulley that I am not sure what it belongs to. There are no markings on the pulley. The outside diameter of the large pulley is 7.75" and the smaller to look like 6.75. I will attach a few pictures if that might help someone identify this pulley. Thanks.

[430dragpack]

GM, I believe.

[68blk500c]

Looks similar to '67 289 with AC?

[430dragpack]

Looks similar to '67 289 with AC?

Center hole is way too small for that.  That small of a center hole could possibly be for a '67 and earlier FE dampener, but not a small block.  I'm sticking with GM.

[Bob Gaines]

Looks similar to '67 289 with AC?

Center hole is way too small for that.  That small of a center hole could possibly be for a '67 and earlier FE dampener, but not a small block.  I'm sticking with GM.

+1 . My guess too . It looks weird.

[Fast Fords]

Thanks for the replies guys. I guess I will just file it away. Thanks again.