The Admiral wants polished as well......guess I know what I am doing the next few evenings.
The taller Eddie Marine valve covers are for clearance of a rocker stud girdle. if I had a bigger motor, blower and dry exhaust, I would need the clearance. since the internals are forged and the CR is about 9.5:1, I could always drop on a small blower......

....and proceed to shred the drive :facepalm:
Stock valve covers would need a 3/8" spacer to have adequate room for the existing rockers. the rocker locks currently hit the underside of the covers.