[al lkosmal]

Wellwood,
The head-stud pulling issue was prevalent among the engines with thermal reactors, especially in warm climates....but none of the mag cased engines are immune. Most 2.7 cases have been time-certed (or approved equivalent) by now....and that addresses the head-stud pulling problem. However, over time and once the engines are disassembled, the cases can warp and require additional work, like align-honing or align boring of the mains ,etc. to return them to spec. Basically, you need the case inspected to verify the work required......

The pic i posted earlier of the pulled stud(s) is one of the worst cases I've seen........I have another 2.7 I'm building for one of my projects that had no studs pulled and the case is in great shape.......

regards,
al

PS: the 2.7 is one of my favorite engines.......