Show me domed pistons and the head to match them pistons on a new Hemi...... The piston on a new Hemi are completely flat and ARE NOT domed like the original Hemi and the head design is basically "half" of what an old Hemi is. They can't use a "real" Hemi design these days because they wouldn't meet emmisions standards. The head of a new Hemi today is more or less half of a Hemi. The valves are inclined and when the valve opens it moves the valve away from the cylinder wall preventing shrouding. This cyinder head design is not a hemisperical head. Want proof? Search on google for "New Hemi designs" and tell me what you come up with.