This is an original Harley Brass Linkert M61 Carburetor Body. This is a stripped core for rebuild, couple threads may need some chasing-see photos. All I have for this is what is seen in photos. Not sure of exact years or models this may fit.
Please check my other auctions. The item "Vintage LINKERT M61 BRASS CARBURETOR BODY Original L&L Harley Motorcycle" is in sale since Wednesday, November 11, 2020. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts & Accessories\Air & Fuel Delivery\Carburetors". The seller is "djb970" and is located in Fort Collins, Colorado.This item can be shipped worldwide.