ARP 156-5002 Main Cap Side Bolt Kit for Ford Modular Late Aluminum Block (M9)

Vehicle Fitment

• 2011-2021 Ford Modular V8 "late aluminum block" (M9) engines - compatible with 4-bolt main cap side applications (e.g., Mustang GT, F-150, late Falcons)

Features

• 12-point, 10 mm socket head design for secure and precise torque application
• Constructed from high-strength 8740 chromoly steel with rolled threads
• Heat-treated to approximately 190,000 psi tensile strength
• Includes hardened flat washers and high-quality nuts for complete hardware set
• Protects block threads and prevents main cap walk/fretting
• Reusable design superior to factory torque-to-yield bolts
• Ideal for engine rebuilds, high-stress, or performance applications
• Manufactured to ARP's professional-quality standards

Specifications

• Material: 8740 chromoly steel
• Finish: Black oxide (implicit from ARP Pro/standard finish)
• Socket size: 10 mm 12-point
• Tensile strength: ~190,000 psi
• Kit type: M9 "late aluminum block" main cap side bolts

Included Components

• 1x complete set of main cap side bolts for M9 block (quantity as per engine requirement)
• 1x set of hardened flat washers
• 1x set of matching nuts

Product Description

The ARP 156-5002 Main Cap Side Bolt Kit is engineered for Ford's Modular V8 "late aluminum block" (M9) engines, including 2011-2018 Mustang GT, 2011-2021 F-150, and late-model Falcons. These 12-point, 10 mm side bolts are made from premium 8740 chromoly steel with rolled threads and heat-treated to approximately 190,000 psi, providing exceptional durability and resistance to thread wear and main cap movement.

The kit includes bolts, hardened washers, and nuts, offering a reliable, reusable upgrade over factory torque-to-yield fasteners. Perfect for performance builds, engine rebuilds, or daily drivers demanding long-term dependability - ARP's exacting quality ensures service-grade strength and fitment. Fitment confirmed for M9 blocks. No lift/drop height applies.