I have two frame mounts and I'm trying to find out what there off of.
Part numbers are 3945598 and 3980941. Thanks. Is their a web site that show all 67-69 Camaro part numbers. Thanks again.

The 3945598 Big Block RH for a 67/68 Camaro.
The 3980941 Big Block LH for a 69 Camaro.

You have a mismatched set. The 67/68 also use different engine mounts than a 69.