ARP Main Stud Kit

Brand: ARP
Manufacturer’s Part Number: 132-5401
Part Type: Main Cap Fasteners
Product Line: ARP Main Stud Kits

• Main Bolt Style: 2-bolt

• Fastener Style: Stud

• Head Style: Hex

• Nut Style: Standard Hex

• Works with Windage Tray: No

• Tensile Strength: 190,000 psi

• Material: 8740 Chromoly Steel

• Nuts Included: Yes

• Washers Included: Yes

• Quantity: Sold as a kit

Overview

Say goodbye to main cap walk and thread damage with the ARP Main Stud Kit. Each stud is made from premium 8740 chromoly steel and heat-treated in-house to a muscular 190,000 psi tensile strength. Unlike the pretenders, ARP rolls its precision J-form threads after heat-treatment—resulting in superior thread strength that won’t flinch under pressure.

Every kit includes hardened parallel-ground washers and high-strength nuts to deliver consistent torque and clamping force. It’s a no-brainer upgrade for builders who demand bulletproof bottom-end reliability.

Bolt it down. Build it right. Go full send.