ARP Cylinder Head Stud Kit for BMW M50B25 2.5L
High-strength ARP cylinder head studs with 12-Point
ARP 8740 Chromoly steel for Performance and Motorsport engines
The ARP 201-4302 cylinder head stud kit is specifically designed for high-performance engines where a reliable and permanently stable connection between the engine block and cylinder head is critical. Compared to factory torque-to-yield bolts, ARP head studs provide significantly higher tensile strength and much more consistent clamping force – ideal for engines with increased power output, turbo conversions, or motorsport applications.
Manufactured from high-strength ARP 8740 chromoly steel, these studs ensure outstanding strength and durability even under extreme thermal and mechanical conditions. Using head studs instead of conventional cylinder head bolts also improves cylinder head alignment and reduces the risk of thread damage in the engine block.
The threads are precision rolled and heat-treated by ARP to provide maximum strength and uniform load distribution. This makes the kit particularly suitable for performance street builds, track cars, and racing engines that operate under high cylinder pressures.
Technical Features:
- ARP Part Number: 201-4302
- Material: ARP 8740 Chromoly Steel
- Significantly higher tensile strength than OEM cylinder head bolts
- Improved and more consistent cylinder head clamping force
- Ideal for performance, turbocharged and motorsport applications
- ARP cylinder head studs
- Matching 12-point nuts
- Washers
- ARP assembly lubricant
- Availability: to order
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