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Hello, this is my first post on this site. I have a 1986 E350 motorhome with a 460. I have taken top end off (finally out of that cramped area!). I went to order a gasket set and I need the build date. 02/21/86 is the magic date for a different gasket set. Do I just need the number off the block? Maybe head casting numbers also??
Any help would be greatly appreciated.