[hilandscott]

In my search for something that everyone else is looking for to upgrade the early SC (8.5:1 stock CR)-- higher compression pistons-- I have found a guy who claims to have Kolbenschmidt (sp?) Euro 9.8:1 that were taken from an '83 Euro 930/10 engine.

Most info I have is to stick with Mahle, period, even though a good set of used higher CR pistons is not easy to find. Also, it seems that there is doubt that KS ever made a piston that was higher than 9.3:1. If this is the case, and there really is no way of "visually" inspecting the pistons, it is not worth the cost to change to KS / Alusil cylinders for .5 increase in CR. I have been informed that Mahle/Nikasil is all around superior.

Anyone have a clue here, or some Mahles they want to sell... or some 3.2 Max Moritz sitting in the basement?

Thanks, John

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'78 911 SC 3.0