Heads milled

sireland67 said
I picked up a few small block parts off a friend of mine.
In the parts there was two sets of "J" heads.

One set looks untouched, the other set has been milled alot, they look like close chamber heads, there was so much taken off them.
What is the easiest way to determine how much these heads were milled?
He cannot remember how much he had machined off of them.

Also I have an intake that I acquired that I know has been milled, but do not know how much, how do I measure it?

RustyRatRod said
Get a micrometer large enough to go from the flat part of a head bolt hole to the deck surface. Compare the milled head measurement to the unmilled head. That should give you an idea.

I like to get plexiglass and use that on the head machined face, then drill a hole and you can "scoot" it all over the head and take measurements to compare...

Use the plexi glass as a travelling base/reference.... Measure from the top of the plastic to the head face for your datum, then move to other locations and take measurements and subtract the first measurement to find how much distance from the milled face....