ARP 135-4305 BBC Air Flow Research 18 Degree 12-Point Head Stud Kit

The ARP 135-4305 head stud kit is specifically engineered for Big Block Chevy engines equipped with Air Flow Research (AFR) 18-degree cylinder heads. This premium fastener kit provides superior clamping force and reliability compared to conventional head bolts, making it ideal for high-performance and racing applications.

Key Features:

• 12-point head design allows for precise torque application and easier installation in tight spaces
• Manufactured from ARP's proprietary 8740 chrome moly steel for exceptional tensile strength
• Heat-treated to 200,000 psi tensile strength for maximum clamping force
• Black oxide finish for corrosion resistance
• Precision-rolled threads minimize stress risers and provide more accurate torque readings
• Includes premium-quality parallel-ground washers for even load distribution
• Complete kit with ARP Ultra-Torque assembly lubricant

ARP head studs are the preferred choice of professional engine builders and racers who demand the ultimate in head gasket sealing reliability. The stud design allows the fastener to be pre-installed into the block, ensuring proper thread engagement and alignment while eliminating the variable of pulling both the fastener and head gasket simultaneously during installation.