Chevy S/S W/P Pulley Bolt Kit

The ARP 430-6802 Chevy Stainless Steel Water Pump Pulley Bolt Kit is the upgrade choice for small-block and big-block Chevrolet engine builders who demand reliability under high-RPM conditions. Water pump pulley bolts experience constant stress from engine vibration, thermal cycling, and rotational load—especially in modified or forced-induction applications where engine speeds push beyond factory limits. This kit addresses a critical weak point by replacing factory fasteners with premium ARP hardware engineered to prevent bolt stretch, loosening, and catastrophic coolant system failure.

ARP fasteners are manufactured from premium stainless steel and feature superior tensile strength compared to OEM bolts, resisting corrosion while maintaining clamping force through repeated heat cycles. The 430-6802 kit includes precisely engineered bolts with optimized head geometry and threading that work seamlessly with factory Chevy water pump pulleys without modification. Stainless construction eliminates galvanic corrosion risk when mixed with aluminum or cast-iron components, ensuring long-term durability in street and race engines alike. The compact kit weighs just 0.16 lbs, making it an efficient, lightweight upgrade with zero impact on engine balance or accessory drive function.

This bolt kit benefits anyone rebuilding or modifying a small-block or big-block Chevy engine, from street performance enthusiasts to serious race teams running superchargers, turbochargers, or naturally aspirated combinations pushing 7,000+ RPM. Installation requires no special tools—simply remove factory bolts and install the ARP fasteners using standard socket and wrench, torquing to manufacturer specifications for your specific engine platform. The stainless steel construction means these bolts resist rust and corrosion in marine or high-humidity environments, making them ideal for long-term storage or year-round use. Whether you're freshening a 350, upgrading a 454, or building a modern LS derivative with a traditional water pump configuration, this kit provides peace of mind that your cooling system won't fail due to fastener inadequacy.