Quote:
Originally Posted by 930cabman
Most or at least many of us know the short comings of the 911 head stud issue, I recently have found the crankshaft bores in our 2.7 magnesium cases do not return to round/aligned condition after disassembly. Add this to the head stud (overbored and no material left for good anchorage) issue, and it adds up to a mess. I would like to believe someone out there has the ability to get these cases in serviceable condition for reasonable $$.
thanks
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I appreciate your concern for $$ but unless there is a matching numbers issue, at times the best move is to seek a replacement case.
Some of the extreme measures to "save" 2.7 cases a money's poorly spent.
With 8 main bearings in the 911 case, "perfect" main bores become less important. Keep in mind that after a couple of heat cycles the main webs in a mag case engine are no longer round.
Upgraded oil pump to ensure oil pressure at idle, cam feed restricters and quality bearings will make up for a slightly oval main saddle.