just I case you guys haven't seen or heard of these. It's a big block chebbie block or in most cases an aftermarket block. And this company Arias made a Hemi style head for it. They ran pretty good. Used to see a lot of them. Still see a few. I think most Alky racers & others needing this kind of power are using Stage IV or BAE heads & blocks which are based off of the 426 Hemi like the Keith Black engines. Just thought I'd post for a little FYI