When it comes to fasteners, most of us know that all fasteners have a torque spec – that is an ideal amount of preload, which is measured through the fastener’s resistance to turning.

Going beyond fastener torque, ARP's rod bolt stretch gauges allows you to measure exactly how much stretch is in your rod bolt.

By verifying proper bolt stretch you are ensuring you have the proper clamp load.

Engine and Driveline bolts on high-performance cars are rarely installed dry. Mechanics have debated what assembly lube to use.

APR Bolts has the answer to that question with their Ultra-Torque Assembly Lubrication

Head gasket materials and technology have come a long way in the past few decades.

What you used to know may not be applicable with today's modern materials and construction.