Experience unrivaled power and performance with the ARP Head Stud Kit for your BMW S85 V10 engine. This high-quality kit is designed to replace the factory head bolts BMW# 11127583116, making it an ideal solution for high-performance driving enthusiasts looking to unleash the full potential of their engine. Crafted by ARP, an industry leader in fastener technology, this Head Stud Kit boasts a remarkable tensile strength of 200,000 psi, ensuring that the studs can withstand extreme pressure and loads. This results in exceptional durability and reliability for your engine, providing you with peace of mind during even the most demanding driving conditions. The Head Stud Kit is a bolt-on installation and requires no additional modifications. Precision-machined washers and nuts are included, providing a perfect fit for your BMW S85B40 engine. This kit is specifically designed for the BMW S85B40 engine, which is commonly found in various BMW models, including the E60 M5, E61 M5, E63 M6, and E64 M6. 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. PRELOAD (TORQUE) RECOMMENDATIONS 7. Following the manufacturers recommended torque sequence tighten the nuts steps 1-4 Step 1: Tighten Studs 1 through 12 to 25 ft-lbs. Step 2: Tighten Studs 1 through 12 to 50 ft-lbs. Step 3: Tighten Studs 1 through 12 to 75 ft-lbs. Step 4: Tighten Studs #13 & #14 to 11 ft-lbs. with ARP Ultra-Torque fastener assembly lubricant Bolt Torque Sequence 13 12 8 1 3 5 9 14 11 7 4 2 6 10 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. BMW S85 Applications: BMW 5 Series 2005-2010 E60/E61 M5 BMW 6 Series 2005-2010 E63/E64 M6
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