[ddouglas77]

thanks for teaching me something new-I mean old, it will definetly help in the future. Todays standards and only definitions are as outlined and attached above, The pent roof was similiar, but had different results-obvisiouly. By the late 60's, Dodges hemis are just as ours, intake, almost 180 degrees away from exhaust as our alfas have the exhaust on one side and the intake on the either, instead of the exhaust on one side of the block and the carb on top. You can have heart shaped (most effiecient-check out the V6 60 degree engines GM put out) and completely faced heads with all the trimmings-the only factor remains is that the plug separtes the valves.