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Steve@Rennsport Steve@Rennsport is offline
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Join Date: Jul 2001
Location: Portland Oregon
Posts: 7,004
Hi Anna,

Its the early HEADS that get machined for sealing rings; the cylinders simply get a small cut to aid the process.

If your 100mm P/C's are in excellent condition well within spec, you can have them machined for sealing rings. If they are close to, or beyond spec, I would recommend the newer ones that use sealing rings.

Your heads do not need any specific work to accept the later cylinders.

Hope this helps,
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Steve Weiner
Rennsport Systems
Portland Oregon
(503) 244-0990
porsche@rennsportsystems.com
www.rennsportsystems.com
Old 08-30-2016, 08:45 AM
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