Here is a brand new pair of repro  Indian Chief cad plated manifold nuts used from 1940 to 1953.  (Pre 1940 on another auction). These are the same as original - 1 13/16"  and .700 thick. Many on the market are the wrong size. Only $33 - check your catalogs - best price anywhere.  Check out my other motorcycle auctions.  Only $5.95 air mail to the USA and $3.95 in Canada. All others inquire. Combine auctions for cheaper shipping.  GST or HST on Canadian sales.  Thanks for looking!