A Look Back at the 702ci GMC Twin-Six V12 Engine
 

Enginelabs had an article on the 702

http://www.enginelabs.com/news/a-loo...ix-v12-engine/

Re: A Look Back at the 702ci GMC Twin-Six V12 Engine
 

Interesting article; thanks for the link.
I wonder if that dyno run ever got done (?)

Re: A Look Back at the 702ci GMC Twin-Six V12 Engine
 

Great article! I saved it in mht format here in case it ever goes down. Just unzip it, then open in Firefox (with mht archive plugin) or your favorite browser. All the stuff should show up perfectly.

Re: A Look Back at the 702ci GMC Twin-Six V12 Engine
 

Great article! Thanks for posting! Still never ceases to amaze me how dumb some people are that leave comments on those article.

Re: A Look Back at the 702ci GMC Twin-Six V12 Engine
 

Great article! Thanks for posting! Still never ceases to amaze me how dumb some people are that leave comments on those articles.

Re: A Look Back at the 702ci GMC Twin-Six V12 Engine
 

Here's a video of a dyno run; audio but no data.

(can't get the link to work right) copy and paste:

https://www.youtube.com/watch?v=HL0AT3k30DA

Re: A Look Back at the 702ci GMC Twin-Six V12 Engine
 

Thanks Mike; well that audio sounds killer or at least the engine does.

Re: A Look Back at the 702ci GMC Twin-Six V12 Engine
 

That video is from Thunder V12. com. Wildly hopped up V12 that can accomplish 5,000 rpm and make turbo big block chevys look like junk. lol Put it this way, the dyno could hold a big block down below a certain rpm, but this beast outdid the dyno because of the beast amount of torque ! :upyes: