so far on my 235 i have painted the head, which used only one can of paint, and another can to paint the manifolds,so i'm guessing it will take 3 to 4 cans of paint to do the block, not counting the valve cover, oil pan, manifolds, etc. hope this helps,
Indy
P.S. i would buy extra just in case something happens. for instance, i had just painted my manifolds and they looked beautiful. but they then fell off my table and got grass all over the wet paint and so i had to repaint. very frustrating.
