Correct motor mount
 

what would the assembly line correct motor mount be for a sept of 68 built Z/28 are the small block & big block mount the same ?

An initial '69 P & A lists 3939728 for 302 & 350; 3937930 for the BB. By 1971 3990918 was used for both. There were several changes & suppliers over the years.

Production parts may be unique, based on guys I know hoarding them.

NON locking correct?

They are not reproduced and no the big block and small block ones are not the same, they are similar however not the same.

The mount could be reproduced which would not separate by using two interlocking stamped steel plates with the rubber injected into the void.
What is the market for correct 1969 Small block HP motor mounts?