C# Marking Everything As Serializiable What C/s Fits A 454 Chevy,block Casting #286?

What c/s fits a 454 chevy,block casting #286? - c# marking everything as serializiable

I have a long block, but it is believed a gasket 1 piece c / s but it is shaped 2-piece crank in it.I that their model is not a mark to a 90 model IV and left a really 3500HD Factory installed 2-piece Seal C / s in it? # 039 2 piece crank on, but I puzzled.looks as a piece of 1 fixed block. Thanks