A detailed explanation of the valve seat issues that plague M97 engines.
Author: Hoffman
Can't walk and chew gum at the same time, but never chews gum so it's not an issue.
AAPerformance Chinese 2.0 914/4 Knockoffs
Now available direct to the public.
986 996 Porsche Cylinderhead Cracks Explained
Click here to see video of a 996 3.4 M96 head being pressure tested, revealing a microscopic crack that was not visible to the naked
VW Type 4 Crankcase Breathing System Testing & Analysis
This article explores and unravels the mysteries surrounding the sometimes controversial issue of venting Type 4 cranckases, for street and track cars.
M96 & M97 PORSCHE CYLINDER HEAD SPECIFICATIONS AND GENERAL INFO.
M96/97 Valve Sizes, Chamber Volumes, Component details, Failure Types, Misc. Info.
BMW M20 Cylinderheads
BMW M20 Cylinderheads While these heads, like most BMW heads, offer fantastic performance in stock form, they do leave some room for improvements. The biggest
hamheads.com 
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