You may be quite correct! I prefer to think of it as the front 1/4 of a 340, with Hemi chambers (baby Hemi) lol! But I've really never researched much about the engineering aspect of the Ironheads.. you'd think I would have. I've had that thing for 20 years! You know since you said that, and I stepped back, and looked at my pictures, I can actually visualize that and see it! That makes total sense and I know a lot of the old Rolls-Royce Merlin engines were Hemis
