Some parts will fit and it will bolt to the original trans. A weighted 360 converter(if your trans is the later fine spline input,and it should be).Or you can use a balanced flex plate used with a neutral balance converter.Exhaust manifolds are different port spacing and don't fit.The motor mounts may fit but will need shimmed,on one side the 360 mount boss is narrower.Distributor yes it will fit.My '65 Coronet has an LA 318 where a Poly/wide block once was.It has one bell housing bolt that doesn't line up,so it is not used.Not sure if this is true on your later trans,but it poses no real issue.
RT