Original Mounts for LS-6 Chevelle?

[blackls6]

Are these the original motor and tranny mounts for my LS-6?
Motor mounts number are 3974755 with raised markings(black, on green, gold), and tranny mount with part number 3945476.
Thanks! John

[Mr70]

Think that engine mount is a later issued service part,but will work for an LS-6.
The assembly line used #3962740 originally with a gold marking for ALL 1970 Chevelle Big Blocks.
Your tranny mount is assembly line correct for ALL 1970 Big Block Chevelles.

[wheelhop]

Anybody know where I can find an original tranny mount part # 3945476 ? Same as above, it's for a 69 L78 / M22

[wheelhop]

bump