A brief debunking of a common misconception about water cooled cylinder head cracks.
Category: Porsche
All things Porsche
Porsche 987/997 Valve Seat Issues
A detailed explanation of the valve seat issues that plague M97 engines.
M96 & M97 PORSCHE CYLINDER HEAD SPECIFICATIONS AND GENERAL INFO.
M96/97 Valve Sizes, Chamber Volumes, Component details, Failure Types, Misc. Info.
Porsche M96 M97 Exhaust bolt removal
We see an awful lot of busted exhaust bolts in these heads. And we see a lot of failed repairs. We also see a lot
A Tale Of Three Heads:The 3.4l Porsche Lineage M96,M97,9A1
I originally published this article in 2012. Though I’ve made major advancements in certain areas with all three of these heads, the basic info here
996 Cylinder Head Crack Repair
We have seen cylinderhead cracks in all models of M96 engines used in 986 Boxsters and 996 911’s up to and including model year 2001,
hamheads.com 
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