Valve Cover Bolt Kit - 1/4-20 6pt. (14)

The ARP Valve Cover Bolt Kit – 1/4-20 6pt (14) is a precision fastener set engineered for engine builders, automotive technicians, and performance enthusiasts who demand verified reliability in critical engine assembly. This kit delivers 14 chromoly bolts finished in black oxide, each measuring 0.515 inches long with a 1/4-20 thread pitch and 6-point hex head, plus stainless steel washers included for proper clamping surface distribution and corrosion resistance.

The chromoly material in these fasteners provides superior tensile strength compared to standard steel, critical when securing valve covers on high-performance or turbocharged engines where vibration and thermal cycling demand fatigue resistance. The 6-point hex head geometry distributes load more evenly than 12-point alternatives, reducing the risk of bolt rounding and ensuring consistent clamp load retention across repeated service intervals. Black oxide coating resists light corrosion and enhances visual finish while maintaining dimensional accuracy for proper socket engagement.

This fastener set is specified for small-block and mid-size engine applications requiring 1/4-20 valve cover mounting. The included washers ensure uniform pressure distribution on soft gasket materials, preventing gasket creep and oil seepage—a common failure mode when fasteners are installed without proper washers. ARP is recognized within the racing and high-performance automotive community for manufacturing bolts to verified specifications, making this kit a trusted choice for engine builds targeting durability and leak-free assembly.

Whether rebuilding a stock engine, upgrading fasteners on a performance build, or servicing an existing engine assembly, this ARP kit eliminates the need to source individual fasteners and washers separately. The 14-piece count covers standard V8 and larger-displacement engine valve covers, with spares for loss or damage.