ARP 156-5403 Main Stud Kit for Ford Modular 4.6L Iron 2-Bolt w/Windage Tray

Vehicle Fitment

• 2003-2004 Ford Modular 4.6 L cast iron V8 engines with 2-bolt main caps and factory windage tray (e.g., supercharged Cobra applications)

Features

• Constructed from premium 8740 chromoly steel for exceptional strength
• Heat-treated to approximately 190,000 psi tensile rating
• Designed to eliminate main cap walk and fretting in high-RPM or boosted setups
• Includes hardened washers and high-quality nuts for full-replacement coverage
• 12 mm 12-point or 4 mm Allen socket access for flexible installation
• Ideal for performance engines with factory windage trays
• Reusable hardware - superior to OEM torque-to-yield bolts
• Manufactured to ARP's professional-grade specifications

Specifications

• Material: 8740 chromoly steel
• Tensile strength: ~190,000 psi
• Socket compatibility: 12 mm 12-point or 4 mm Allen
• Components: studs, washers, nuts included
• Block type: Cast iron, 2-bolt main with factory windage tray

Included Components

• 1x complete set of main studs for windage tray application
• 1x set of hardened washers
• 1x set of high-quality nuts

Product Description

The ARP 156-5403 Main Stud Kit is engineered specifically for 2003-2004 Ford Modular 4.6 L cast iron engines equipped with 2-bolt main caps and factory windage trays, as found in supercharged Cobra models. Crafted from 8740 chromoly steel and heat-treated to a tensile strength of approximately 190,000 psi, these studs help prevent main cap walk and fretting in high-performance environments.

This complete kit includes studs, hardened washers, and nuts, providing a reusable upgrade over factory torque-to-yield hardware. Installation flexibility is enhanced by dual socket compatibility - 12 mm 12-point or 4 mm Allen. Ideal for builders seeking enhanced bottom-end durability in performance or forced-induction applications.