The post-Ford era Panteras (GTS, Group 3, and GT5) were equipped with 351C engines manufactured in Australia. So I figure a few of you North American owners of these cars may have a pair of Australian made small port OPEN CHAMBER iron heads stacked in the garage. If so I'd be interested in buying a pair of them from one of you.
Australian Ford also produced a quench chamber version of the small port head, it was original equipment on the 302 cubic inch version of the Cleveland (i.e. the 302C). That head is the popular head, the head most people want. But its not the head I'm hoping to find. I could use the 302C head, but I'd prefer the open chamber version that was original equipment on the Australian made 351C.
The Australian open chamber heads differ from US open chamber 2V heads in one important way, they have a wider flange around the exhaust port, allowing 4V exhaust headers to seal up around the smaller 2V sized exhaust port. Your Panteras would not have been able to use GTS exhausts unless the heads had this capability. The picture below illustrates 3 ways to identify an Australian head.
Please PM me if you can help out.