S/S Timing Cover Bolt Kit - 12pt. LS1/LS2

The ARP S/S Timing Cover Bolt Kit - 12pt. LS1/LS2 is the go-to fastener upgrade for serious LS engine builders and performance enthusiasts who demand reliability under extreme conditions. Designed specifically for GM's legendary LS-series engines, this stainless steel bolt set replaces the factory hardware on the timing cover—a critical sealing surface that endures constant thermal cycling and vibration. Whether you're assembling a high-horsepower street engine, a track-dedicated build, or a classic car restomod, quality timing cover fasteners ensure leak-free operation and a professional finish that lasts.

This eight-piece kit features ARP's premium stainless steel construction with a polished 12-point head design that resists corrosion, galling, and discoloration—essential for engines that see frequent heat cycling or sit in harsh environments. The 12-point head geometry distributes clamping force more evenly than traditional six-point fasteners, reducing stress concentration and improving bolt preload consistency. Stainless material eliminates galvanic corrosion between dissimilar metals, a common cause of stuck bolts during future service intervals. The polished finish is not merely cosmetic; it allows visual inspection for proper torque by revealing witness marks and provides a professional appearance under the timing cover.

Mechanics and engine builders trust ARP fasteners because they meet or exceed OEM specifications while delivering superior corrosion resistance and ease of installation. These bolts are ideal for LS1 and LS2 engines used in Camaros, Corvettes, Pontiac GTOs, or swapped hot rods, as well as any aftermarket LS application requiring factory-compatible timing cover hardware. Proper installation requires applying ARP's recommended assembly lubricant and torquing to specification—a straightforward procedure that eliminates guesswork and ensures repeatable results across multiple builds. This kit represents the professional choice for builders who refuse to compromise on fastener quality.