ARP 151-4002 Head Stud Kit for 1927-1931 Ford Model A 201 4-Cylinder

The ARP 151-4002 head stud kit is specifically engineered for 1927-1931 Ford Model A 201 cubic inch 4-cylinder engines. This premium fastener kit delivers the exceptional strength and reliability that professional engine builders demand for vintage Ford builds and restorations.

Premium 8740 Chrome Moly Construction:

Each stud is manufactured in-house at ARP's California facilities from premium grade 8740 chrome moly steel, nominally rated at 190,000 psi tensile strength. This material specification provides significantly superior strength compared to original equipment hardware, ensuring reliable cylinder head clamping force under all operating conditions.

Complete Kit Includes:

• 8740 chrome moly head studs with rolled threads for superior fatigue resistance
• Parallel ground washers for even load distribution
• Forged, hardened, CNC machined and polished stainless steel acorn nuts
• ARP Ultra-Torque assembly lubricant
• Detailed installation instructions with proper torque specifications

Advanced Manufacturing Process:

ARP studs undergo precision heat treatment and thread rolling after heat-treating, which provides up to 20 times better fatigue strength than cut threads. The rolled thread process work-hardens the material and creates a smoother, stronger thread form that resists galling and ensures consistent torque readings during installation.

This head stud kit is ideal for vintage Ford Model A enthusiasts seeking to upgrade from factory head bolts, whether for improved reliability in daily driving, performance builds, or complete engine restorations. The superior clamping force helps prevent head gasket failures and maintains proper sealing even under thermal cycling.