All the OEM stamp steel max wedge valve covers I've seen are not like the non Max wedge covers for the B and RB motors. they are a little bit taller and maybe a tiny bit narrower across the tops also. No clearance issue inside with adjustable rocker arms, unlike the stock steel valve covers with the stock stamp steel rocker arms and shafts
My original 1963 415 HP M.W. car had 4 bolt valve covers that had the tab on both ends on the spark plug side for the added 2 extra valve cover bolt holes that Mopar added in 1964