ARP® 233-5602 - 4-Bolt Main Stud Kit

4-Bolt Main Stud Kit by ARP®. There are many important reasons to use ARP main stud kits including the elimination of main cap walk and fretting as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place. The studs are manufactured from 8740 Chromoly steel heat-treated in-house to 200,000 psi tensile strength and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others. The engineers at ARP spent quite a bit of time developing these highly effective, unique oil pan studs. They’re designed to make it as easy as possible to install a pan and seal it properly. You’ll note that the studs have a radiused bullet nose that serves to locate the pan rails, then allow the nuts to be easily installed without the worry of cross-threading. For those who prefer bolts, ARP’s got you covered, too.

Specifications

Features

• Designed and manufactured using innovative technologies
• Made with maximum safety and reliability in mind
• Expected to provide seamless service for years

ARP® was established back in 1968 by Gary Holzapfel who was passionate about creating reliable fasteners for the automotive industry. The company's dedication to total customer satisfaction has allowed it to grow from a garage workshop into a leading source for high quality fastening solutions. Today with five operational entities located in Southern California and a combined area of more than 200,000 square feet, ARP stands ready to provide customers with virtually every fastener found in an engine and driveline. The brand's product list ranges from high performance OEM replacement parts to specialty hardware for racing and marine applications.