I see several advantages right off the bat with this cover. No more expensive spacers to buy to use other style valve covers to gain rocker clearance, no more specially clearanced rockers arm sets for the two end positions that are also expensive, and no thermostat spacer or special thermostat housing is needed to clear at the front of valve cover, and finally, no more custom sheetmetal valve covers will have to be purchased either when using stud girdles for performance or racing applications which are also expensive. Having a valve cover that eliminates all of those unecessary components is going to make it so much cheaper.
