S/S Valve Cover Bolt Kit 1/4in- 20 12pt. (8)

The S/S Valve Cover Bolt Kit 1/4in-20 12pt. (8) from ARP represents a critical upgrade for any serious engine builder or performance enthusiast. Valve cover bolts are often overlooked, yet they secure one of the most frequently accessed components on your engine, making fastener quality essential for both reliability and appearance. This eight-piece stainless steel kit replaces factory hardware with premium ARP fasteners that resist corrosion, vibration loosening, and thermal cycling—common failure points in high-heat engine compartments. Whether you're assembling a show-quality build, upgrading from OEM hardware, or rebuilding after a valve cover gasket job, quality fasteners ensure your engine stays sealed and looks professional.

These bolts feature stainless steel construction, offering superior corrosion resistance compared to mild steel factory hardware—a critical advantage in wet climates or salt environments. The 1/4-inch by 20 thread pitch (1/4in-20) matches the industry standard for most American V8 and inline engines, while the 12-point head design provides excellent tool engagement and reduced risk of rounding when torqued to specification. ARP's precision manufacturing ensures consistent thread geometry and tensile strength, preventing the stripped holes and loose covers that compromise engine sealing. The polished finish adds visual appeal while the stainless composition eliminates rust and discoloration that degrades engine bay appearance over time.

This kit suits restoration projects, performance builds, marine engines, and any application where reliable, corrosion-resistant hardware matters. The eight bolts per kit cover most single valve cover installations, though verify your specific engine's bolt count before ordering. Installation is straightforward using standard 3/8-inch or 10mm wrenches; apply a light coat of ARP Ultra-Torque or equivalent assembly lubricant and torque to manufacturer specifications (typically 10–15 ft-lbs for 1/4-20 fasteners, depending on your engine manual). Whether replacing corroded factory bolts or upgrading during a complete rebuild, these fasteners deliver the reliability and aesthetics that distinguish a quality engine build.