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Eagledriver Eagledriver is offline
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Join Date: May 2003
Posts: 3,181
These things are in the spec book from Porsche. They don't have to be found out by word of mouth. Bearing clearance for 72-73 Porsche 911(including 2.7RS) are as follows:

Mains 1-7 .010mm-.072mm (.0004-.0028 inches)
Rods .030mm-.088mm (.0012-.0036 inches)

As I said my rod bearing clearance was .0015" on a well used engine.
These specs are for new motors from the factory. If you go outside them you are taking a risk. It looks like the word of mouth numbers are within the spec but a little toward the loose end.

-Andy
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72 Carrera RS replica, Spec 911 racer
Old 12-17-2004, 11:20 AM
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