seems to be some confusion here. What was auctioned was an early LZ14 head from around 1973, PB110 era, there's less than ten operational world wide. It was a bare head, and the price was kinda reasonable, but to recommission it would cost lots, no valves valve springs cams and more importantly cam buckets. The green LZ20B is a type 2 rally head probably PA10 or S10, there's a few of these around at least four running engines in Australia, 1 x LZ20B, 1 x LZ18 and LZ14 rally engines and one turboed LZ20B track engine.

There is currently an LZ20B head and turbo on yahoo auctions, it's a bare head and would cost around $30k on top of the purchase price to make it work.

The cams from the type 1 and type 2 heads are not interchangeable