ARP Ford Modular 4.6/5.4L 3-valve hex hsk

ARP Ford Modular 4.6/5.4L 3-valve hex hsk (ARP Part #256-4002) is a precision-engineered fastener from ARP, the world leader in high-performance fasteners for the automotive industry.

These fasteners are manufactured to the highest standards for use in professional engine builds and motorsport applications.

Every ARP fastener is precision CNC-machined from premium raw materials. The manufacturing process includes:

• Cold-forging for superior grain structure
• Precision thread rolling (not cutting) for maximum strength
• Heat treatment to exact specifications
• Magnetic particle inspection for quality assurance

Technical Specifications:

• Thread Size: 6/5
• Head Style: Hex

Applications: Ideal for high-performance street engines, racing applications, turbocharged and supercharged builds, and any application where fastener reliability is critical.

Trust ARP - the choice of professional engine builders and motorsport teams worldwide. When engine reliability matters, choose ARP.