Lantana had to get very creative to get that 5.5L engine to fit into the engine bay. Even with a much thinner electric fan, he only had 1" clearance between the pulleys and and the fan. Not much fun if you have to replace a pulley. Anyway, if a 5.5L engine would barely fit, how the hell would you get a 6.1L Hemi in there? I would have to see it to believe it.