Mini N18 Prince ARP Head Stud Kit

Upgrade your MINI N18 Prince engine with an ARP Head Stud Kit. Unlike OEM bolts, these 8740 alloy studs are reusable, heat-treated to 200,000 psi, and centerless-ground for precise fitment. Engineered for ultimate cylinder head-to-block sealing, they prevent head gasket failure in high-compression or forced induction setups. Each kit includes black oxide studs and hardened parallel washers for even torque distribution and superior durability.  Installation Instructions:  1. To ensure proper thread engagement and accurate torque readings, clean ALL threads in the block. Chase if necessary with ARP Thread Chaser. 2. Clean and inspect all hardware prior to installation. Look for obvious defects or shipping damages, plus proper fit, length and dimension. 3. If the cylinder head studs protrude into a water jacket, lubricate the block threads of the studs with ARP THREAD SEALER. 4. Screw studs into the block “HAND TIGHT ONLY”. 5. Install the cylinder head(s) and check for binding or misalignment. 6. Lubricate the stud threads, nuts and washers with ARP ULTRA-TORQUE FASTENER ASSEMBLY LUBRICANT. Then install the washers and the nuts onto the studs and tighten them hand tight. ARP recommends using the ARP ULTRA-TORQUE FASTENER ASSEMBLY LUBRICANT that is provided with each kit as opposed to motor oil. This is due to higher friction on the studs as well as inconsistencies in the clamping force of the fasteners when motor oil or other low quality lubricants are used. Please note: After initial assembly, it is necessary to allow the engine to complete a full heat cycle, then re-torque your head studs to spec. This means allowing the engine to warm up to its normal operating temperature, remain at operating temperature for several minutes to ensure each component is uniformly heated, then turned off and cooled completely to ambient temperature. PRELOAD (TORQUE) RECOMMENDATIONS 7. Following the manufacturers recommended torque sequence tighten the nuts steps 1-4 ARP2000 Step 1: Tighten studs #1 though 10 to 25 ft-lbs. Step 2: Tighten studs #1 though 10 to 50 ft-lbs. Step 3: Final tighten studs #1 though 10 to 75 ft-lbs. Step 4: Tighten M8 studs #11 and 12 to 35 ft-lbs. with ARP Ultra-Torque fastener assembly lubricant Bolt Torque Sequence 13 11 9 5 1 4 8 12 10 6 2 3 7