When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Pretty sure the same cupped intake/exhaust manifold washers are the same as used on other types of engines over the years. I had to fill a set for my 215 and found them at Iola on a table full of Model A stuff. Stu
The ones that came off my intake/exhaust are 3/4" I always thought the were the 1"
The set up that came off of mine is the 3/4" But I am using a header & the 1" is what I need.........
Other engines used that type of washer in different shapes and sizes, 300 six and Y block (intake) come to mind.
Otherwise, how about stacking regular flat washers?