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kellcats521 kellcats521 is offline
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Join Date: Feb 2005
Location: Atlanta Metro
Posts: 219
Originally Posted by Tom Oxner View Post
I also bought a set of the C2 turbo cylinders to rebuild my 85 930. The viton o-rings on the base of the cylinders seem to be pretty straightforward, but I am a little concerned about the head gaskets. If the head gasket is not used on the 930 will the C2 cylinders seal OK? How does one adjust the deck height if the head gasket is not used (shims under the cylinders)? Has anyone done this install? Thanks.

Tom Oxner
I NEEDED the C2 head gasket on my 87 when I swapped to these P&C's. I think you'll find that the heads have a .75mm relief or shelf cut into them, and the C2 cylinder has a .25mm deck (the 930 cyllinders have a .75mm deck, at least mine did). I needed the .50mm head gaskets, and I found out the hard way - I had to pull the motor apart again when I discovered I had 'zero' compression. You'll need the viton o-rings to seal the cylinders to the crankcase too.

Pat K
87 930
Old 09-21-2007, 06:33 PM
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