valve cover clearance

Been reading and doing some research about the 440 valve covers clearing the heater core motor on an A body when the 440 is put in. I've got a set of cheap mr gasket chrome valve covers for my 440, they look essentially like the stock ones so I'm sure they'll fit. But I was wanting to run the old school finned valve covers from M/T or offenhauser and was wondering if anyone had tried to run those on a 440 in an A body and if they cleared the heater core motor?