Head bolt socket size

[Brian O']

anyone know what the newer cars use for bolt head
?they are the 6 point torx, but they are not standard.
a 50 is too small and a 55 is too big. they are not
the 3 square or spline type. ive heard there are a new
softer head, or more rounded type of torx, but ive
never seen. we are doing valves in the new 2.7 cars
like crazy, audi needs to put metal core supports back
in these cars or they are going to have lots of angry
customers, little deer hits and the  hoods are hitting
the cams, bending the valves.
                                       brian o
93 90cs
90 80
89 80 ( for sale )
88 944 turbo s ( for sale )


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