Whats everone working on?

I Got A 73 340 Duster Pulled The Motor To Freshen It Up And Foun The Drivers Side Motor Mount Was Broke Off The Block (block Pices Were Missing) Also The Alignment Stud Was Snapped Of The Block
So After Several Hours Of Depression I Was Given A 383 So My Question Is This What Will It Take To Put The Big Block In My Car
And Does Anyone Have Any Web Sites That Will Help.

Thanks