ARP 135-3701 Cylinder Head Bolt Set for Chevrolet Big Block

ARP 135-3701 High Performance Series cylinder head bolts provide a premium upgrade over factory fasteners for Chevrolet big block engines with cast iron OEM heads. Manufactured entirely in-house under strict quality control, these fasteners are engineered to deliver superior clamping force and reliability in demanding performance applications.

Key Features:

• 180,000 psi tensile strength—15% stronger than Grade 8 hardware for enhanced reliability
• Compact 12-point head design for positive engagement and reduced risk of rounding
• Wide-area flanged head eliminates valve train removal for easy cylinder head retorquing
• Includes hardened parallel-ground washers for even load distribution
• Complete bolt set for select Chevrolet big block applications
• Precision manufactured to ARP's "zero defects" quality standards

These cylinder head bolts are ideal for engine builders and enthusiasts who demand the reliability and performance that only ARP fasteners can provide. Each component is manufactured to exacting tolerances to ensure proper fit, consistent torque values, and long-term durability under extreme conditions.