Those are trick flow twisted wedge heads. I'm not positive, but I don't think they make the twisted wedge heads anymore. They were a pretty good street head, but I think the geometry destroyed valvetrain parts.
Those are Trick Flows for sure. I had a brand new set of them and sold them. Not a bad looking head but needs a special piston to work right. Here's what new ones look like.
Thanks for helping me out DaCajun. What kind of piston does it take ????
I had the heads redone. I will post pics when I get them back ,soon I hope. They had a couple of slightly bent valves. They had to have a company custom make them due to they're irregular short stem.
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--Mark Stielow Wannabe--
1968 Camaro SS
1969 Camaro SS
1969 Camaro LS7
2014 Chevrolet SS Sedan