265 hemi straight six
Well with the intake and exhaust both on the same side and the plugs not in the top, not to mention it not laying over like the slant, although the chamber looks domed. but the pic of the underside of the heads looks to be two different type heads but the chambers look the same. Is one a regular slant? Never really paid attention to the chamber on a slant. And I'd have to see one walk away from a 340 for myself.