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					Originally Posted by  Dimis
					 
				 
				Patent issues I believe?   
They'll be 3D printing them soon enough.   
			
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 Patent issues? Aren't they all just duplicating a sideoiler or 427 top-oiler engine, which was originally built roughly circa 1962-1964 (or whatever year)? Don't patents sunset after 20 years? I'm sure someone will correct me. 
I just think between building Kirkham Coupes and Cobras and taking on the Shelby orders, they're just too busy for a alloy block. They do make billet aluminum Girling calipers now.