I'm rebuilding my 911 Turbo which has the Mahle 3.5 litre P and C upgrade. This uses the flat top 100mm pistons and 105mm barrels where the enter the case. I will need new barrel spacers and piston rings.

I don't think the rings are going to be a problem, however, not sure where to get the thin spacers that go a t the base of the cylinders. Anyone know a good source for Mahle stuff like this?

Those apacers are likely to be Porsche parts, not Mahle. Wrightwood Racing in Ventura County, CA, might have them. Andial should, too. The Cap'n

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