Short of disassembly, there isn't a really good way to prove that the head was milled. The real reason you want to know though, is to ensure the head gasket is well seated on a good surface. A compression test won't guarantee that there won't be a failure in the future, but it can tell you whether there is an immediate problem, and is one of the simplest indicators of head gasket health possible short of disassembly. It's a good place to start, at least.

James

Jim beat me to the posting <img src="/forums/images/graemlins/lol.gif" alt="" />

Last edited by jezeric; 03/18/08 02:06 AM.