Proper tools and supplies for a job of this magnitude are a must. We picked up a bottle of ARP Ultra-Torque (PN ARP-100-9910) fastener assembly lubricant. Typically, when a fastener is first tightened, friction is at its greatest amount and the preload value, or stretch, is at its lowest. For example, with head bolts this can cause bore distortion, hamper piston ring seal, and lead to poor head gasket sealing. When the fastener is cycled over and over, friction decreases and preload increases. The Ultra-Torque assembly lubricant allows the fastener to be torqued once to become within 5 percent of its ideal preload. Plus, that load remains consistent from race-prep machining to final assembly.