ARP 157-5001 Main Bolt Kit for Land Rover 4.0L/4.6L V8

ARP 157-5001 main bolt kits deliver professional-grade fastener quality at a competitive price point. Engineered specifically for Land Rover 4.0L and 4.6L V8 engines, these main bolts provide the reliability and strength demanded by performance builders and engine rebuilders.

Key Features:

• 170,000 psi tensile strength for superior clamping force
• Reduced wrenching head design for improved access in tight engine bays
• Wide area flange distributes load evenly during torquing
• Precision-manufactured threads for accurate torque readings
• Heat-treated alloy steel construction

ARP main bolts are essential for any engine rebuild, performance upgrade, or racing application where main bearing cap retention is critical. The reduced head design makes installation easier while the wide flange washer area ensures proper load distribution across the main cap surface, reducing the risk of cap distortion or bearing damage.