ARP Cylinder Head Stud+Assembly Lubricant For BMW 2.5L M50/3.0L S50US/3.2L S52US

Product Description   BRAND NEW IN BOX   You are bidding on a Brand New Set of ARP   Includes:   ARP - Head Stud Kit ARP - Fastener Assembly Lubricant   FITMENTS   BMW 2.5L (M50) BMW 3.0L (S50US) BMW 3.2L (S52US) inline 6   1-) Part Number:  ARP - 201-4302   Pro series cylinder head studs from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 220,000 psi. ARP Pro series kits are also available with 12-point nuts, and all kits come complete with hardened parallel washers for an even load distribution and accurate torque readings.   2-) Part Number:  ARP - 100-9910   Because of frictional inconsistencies with oil, moly, and other lubricants it takes multiple cycles of torquing the bolt, loosening it, and tightening it again to obtain the required preload or stretch. Typically, when a fastener is first tightened, friction is at its highest point and the preload value or stretch is low. As the faste