small block heads, 4027596 casting # any good??

387dart said
the 596s are a good late model 360 head - put a 2.00 intake (cutback 2.02)and a 1.60 exh valve with a bowl hog and blend and some cleanup of the runners - they will work better than any J or X.

The exhaust port will work better, but I'd stop there. Its splitting hairs in the intake side.