Today's critical - head studs and bolts, main studs and bolts, and driveline - have been designed stronger than ever before to handle the extreme loads. As a results, installation pre-loads - the amount the fastener is stretched during installation - are very high.
Fastener Assembly Lube Basics
There are a lot of opinions out there about which fastener assembly lube to use and what the torque value should be. First, let's be clear: ARP provides torque specs for our fasteners based on using ARP Ultra-Torque. If you're not using our specs and our lube, you have no real idea what pre-load you're getting. We've done the testing where we can measure the torque applied and the resulting pre-loads. We've tested with our lube and the others people use...and we've got the results to back it up.
Our offices will be closed on Monday, May 25 in observance of Memorial Day."START holiday hours conditional Phone Hours: M-F 7:30a-4:30p PST