What's a "dz"? The mid-60's V8's had mounts on all four corners of the engine, and a free-hanging transmission. Some of the trucks had a horseshoe-shaped mount up front and mounts at both sides of the bellhousing , while others had "bird leg" supports connecting to brackets at the front corners of the engine.
Your best bet will probably be to use an aftermarket tubular universal mount at the mid-engine position, especially if you're planning to run some sort of automatic transmission that needs a support under the tailshaft.
Jerry