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Author Topic: stock head bolts?  (Read 1883 times)

bmwconnect

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stock head bolts?
« on: April 14, 2010, 10:55:29 PM »
I pulled one of my head bolts today thinking I was going to grab some ARPs but then I notice grade12.9 on the bolt. This surprised me naturally . Can anyone confirm they are actual 12.9 spec, stock on the M42?
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BarrieM/// BMW Tuner - OBD1 M42,M30,M20,M50,S50 Chips & OBD2 M44,S52,M52 Flashes
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