Head studs can actually put a big hurtin' on you on some cars with tight engine bays. It's a little more work since you have to back every stud out to have enough room to lift the head off. In older times, the head studs didn't have allen-heads on them and it required a lot more effort. Bolts are better in most situations, but on an aluminum block, you can't use bolts......
Also, you have to watch about randomly recommending head gaskets for engine blocks.
On a Pond block, there are head gaskets that match the sleeve diameter better than others. In some cases, you can still get some sleeve setting over time and you want the head gasket's fire ring to match the sleeve so that it will take up the slack.
On a Windsor block, there are head gaskets (such as the Felpro MLS) that don't reach all the way up to the china wall. That leaves a nice little crevice for
oil to reach out of and it's not something that would jump out to most guys.
FWIW, I sell Cometic head gaskets too.
