No problem. I have a couple of other pics of the "twin 6" i can post tomorrow. I don't know why they GMC nicknamed it that....v12 sounds much tougher in my opinion. It does look like two v6 engines bolted together, but its a 1 piece crank.
There is also a whole thread here on the 60-66 board on the v12's. Even a c-10 with one installed. Pretty cool thread.
http://67-72chevytrucks.com/vboard/s...d.php?t=254111
I like the older pics because of the differnt applications....same as today. Most are internet finds over the years from different searches, most I didn't rename so they are mixed up with different projects and stored pics, so I pull them aside and have been posting them when i get 20-40 batched up. Some people have found pics close to home, one person found an old family pic i belive...but most are anonymous. Would be cool if we had more info on some of them.