Rhea Head?

I have heard that the 'Rhea' heads take a lot of work to get 'right', but when they are right they work really well. Are they being allowed to be used anywhere?

They do work real well but take a ton of work. Check local rules to see if they are legal. From the outside its almost impossible to tell what it is.

I have one here that is decked and close ready to go. Brand new never been on an engine.

Been out of minis for a few years. What's a rhea head?

Aftermarket cast iron head.