ARP AMC 401 w/Indy cylinder head kit

ARP AMC 401 w/Indy cylinder head kit (ARP Part #114-3603) is a precision-engineered fastener from ARP, the world leader in high-performance fasteners for the automotive industry.

These head studs are designed to handle extreme cylinder pressures in high-performance and racing engines. ARP head studs provide superior clamping force over OE bolts, preventing head gasket failure and maintaining proper sealing under boost or high compression.

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: 1/2

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.