I don't know if they make them or not. But, I will tell you this story. A pal of mine has a street rod with one in it, we used the coversion heads, stock 6.76 440 rods with old TRW Hemi pistons. Hydraulic cam, single 4bbl, just a cruiser. He drives it every day, and has for quite a few years. It has 95,000 miles on it now, and still runs great. Amazing.

I don't think I'd build a race motor out of one, but for what he does it's pretty cool. And, it has those big KB valve covers.....