Dear Welder Series…
Working on a 73 Javelin with a chevy big block conversion need idea on motor mount fabrication for this application.
Our C005 mounts (http://18.104.22.168/online-store/chevy-motor-mounts-rubber-insulated/) are very versatile and should be a good choice for your Javelin.
The 2149 is a urethane-bushed mount that is easy to install and has a hi-tech look. (http://22.214.171.124/online-store/chevrolet-motor-mount-kits/)
I hope we can help with your project.