Description
Pontiac main stud set and ARP Lube
Main Bolt Style: 2-bolt
Fastener Style: Stud
Fastener Nut Style: Standard hex
Works with Windage Tray: Yes
Fastener Tensile Strength (psi): 190,000 psi
Nuts Included: Yes
Washers Included: Yes
Quantity: Sold as a kit.
There are many important reasons to use main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. Every main stud kit exceeds the most stringent aerospace specifications, and come complete with hardened parallel-ground washers and aerospace quality nuts. The studs are manufactured from 8740 chrome moly steel, and heat-treated to 190,000 psi tensile strength. I always use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don’t “twist” into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life. They also allow for easier engine assembly and proper alignment of caps every time.
Main studs are recommended over main bolts for a number of reasons, including more accurate torque readings and easier engine assembly plus strength
Rolled J-form threads are 1000% stronger than other threads
Rated at 190,000 PSI, which is considerably stronger than Grade 8 hardware
Manufactured from 8740 chrome moly steel
Main studs are designed to meet the exacting standards and demands of professional engine builders
