I have won the bid on two air cleaners and got them in today. Interesting stuff because one of them is shorter than the other. There were two different types and this was news to me. I mounted both on my 261 engine with Roch B just to make sure they would fit and they do. Here..
http://s160.photobucket.com/user/st...0763_zpsc6a57f92.jpg.html?sort=3&o=9http://s160.photobucket.com/user/st...0765_zps99ca76ae.jpg.html?sort=3&o=7The one I am using for my stainless project uses all stainless hardware and I used a taller (and thicker just for durability) screw in hopes of finding an air filter that is just a bit taller. Here..
http://s160.photobucket.com/user/st...0769_zpsc88616b1.jpg.html?sort=3&o=3http://s160.photobucket.com/user/st...0768_zpscaa46b90.jpg.html?sort=3&o=4http://s160.photobucket.com/user/st...0767_zps49ee6868.jpg.html?sort=3&o=5You can very carefully remove the center stud and then use new hardware to put it back with the length you will need for the air filter that's available. I don't have the part number, but I will soon. Here..
http://s160.photobucket.com/user/st...0770_zpse4730476.jpg.html?sort=3&o=2Another interesting thing on this flatter bottomed one is the sticker. Cant find that in any of the vendor offerings. Im thinking this is an older cleaner than the others? Here..
http://s160.photobucket.com/user/st...0764_zpsafd63176.jpg.html?sort=3&o=8These were available on cars and trucks dating back to 1938 or so. I just didn't want oil sloshing around in my air cleaner, so it was a relief to know they are available. Not inexpensive. I paid $142 for the short one and $120 for the other. They were both in great condition. So, they are out there.