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Lang Racing

PRO SERIES BMW S63 Engine OEM Cylinder Head Stud Set

Regular price $999.00 USD
Regular price Sale price $999.00 USD
Type of Coating
BMW S63 Engine Pro-Series 18.8 Cylinder Head Stud Set

Replacing the original cylinder head screws with high-strength Pro-Series 18.8 studs.
This is necessary when making large increases in performance, as the original cylinder head screws elongate during operation and the cylinder head can lift off.
The Pro-Series 18.8 stud bolts with a tensile strength of 1850 N / mm² provide a solution to this.
In addition, these stud bolts do not have to be replaced after dismantling, but can be reused.

Technical details:
Manufacturer part number: P102091410
Kit content: 20 stud bolt (M11) / 20 nut (M11) / 20 washers / assembly paste / assembly instructions
Tensile strength: PS 18.8 steel / 1850+ N/mm² (270.000+PSI)

The Pro-Series 18.8 sets are high-strength stud bolts manufactured in Germany.
A special steel is used which, after tempering, has a tensile strength of 1850 + N / mm².
All threads are formed and not cut as usual. The so-called rolling of threads can increase the strength of the tooth flanks by around 30%. All Pro-Series products are supplied with a nickel coating or optional with a burnished protecting against corrosion in the long term, even under the toughest conditions. Pro-Series stud bolts have a hexagon socket drive on the head side for screwing in the stud bolts. Due to a cone on the engine block side of the bolt, these are not supported on the thread flanks when the nuts are tightened, but in the bore of the thread in the engine block. This support protects the threads when racing engines are frequently rebuilt.
Pro-Series advantage over other manufacturers is the nuts and washers included in the set, these also have a tensile strength of 1850 N / mm².

Application list:
M5 F10 MY 2011-2016 560PS 575PS 600PS
M5 F90 MY since 2017 600PS 625PS 635PS
M6 F13 MY 2011-2018 560PS 575PS 600PS
X5M F15 MY 2013-2018 575PS
X6M F16 MY 2014-2019 575PS