All Olds 350's of that era were painted gold. 350 was a different block than a 400 and 400 was a different block from a 455 and 400 (66-67) was a different block than a 400 (68-69). Are you confused yet?

Realoldspower.com is a good information site as well as 442.com. Be forewarned about ROP, you have to have a thick skin to live on that site.