The only Z-11 I have ever seen was in Floyd Garret's Musclecar Museum in Tennessee. I have it's picture on my e-bay site " k9hotrodder " Definitly an awesome engine.
Although, it appears to be a fiberglass front bumper in this particular photo, I,ve heard that this car had a set of the over-the-counter aluminum fenders and hood.
Skip. I took the 64 to the local cruise night and a guy there had a Trans Am with an aluminum RAV. He had 2 unfinished Poncho blocks. I was told they only made 5. Does that sound right? Bob