I didn't know the Malcolm Durham car was a ZL-1. I'm guessing they used up the original engine running in the AHRA version of Pro/Stock in 1969? By 1970 it was running in SS/D at NHRA meets. Below is a link to the best picture I've seen of that car. Some other good stuff there too.
Mike
http://www.flickr.com/photos/dodgede...7612759757433/