[Michael C Henry]

As I understand, E1963 is a 3' tall K&N element that fits the oval Ford Cobra air cleaner. Are their any other numbers that are, maybe taller? If I wanted to stack filter elements would I need a plate to keep the elements inline. I wanted about 5" tall so hood bulge would only be 3 1/2". to see over or around.
I have two oval air cleaner metal bodies , I have a black with raised finned ,cast aluminum Cobra dual four top with a stamped sheet metal lower plate with the lower carb necks that raise the air cleaner above the carb neck about 9/16" I suppose to clear throttle linkage. And I have a cast aluminum top and bottom. top is polished on top and retains element by way of the outside edge and lower is just cast aluminum with element held in place by a bead inside of element. The lower cast bottom has extended 1/4" rings, raising the air cleaner to clear the throttle linkage and controls the filter element by a raised bead inside.
The X-stream filter tops start with a 9" wide being the smallest, and mostly black rubber outer body and very little filter element. Again dual carbs are 8 5?8" center and two 9" tops will over lap.