Rear Motor Cover Bolt Kit - 6pt. LS1/LS2

The Rear Motor Cover Bolt Kit - 6pt. LS1/LS2 from ARP is an essential fastener upgrade for LS engine builds where reliability and appearance matter equally. Whether you're assembling a stock-appearing muscle car, a restomod, or a high-output performance engine, this bolt kit replaces the factory rear motor cover fasteners with premium ARP hardware designed to withstand thermal cycling and engine bay vibration without loosening or stripping. LS1 and LS2 engine swaps, crate motor installations, and full engine rebuilds all benefit from upgrading to professional-grade fasteners that won't fail under sustained operation.

ARP's 6-point bolt design provides superior grip geometry compared to Phillips or slotted fasteners, reducing cam-out and fastener damage during installation or future service intervals. The kit features ARP's proprietary alloy steel construction with controlled yield strength, ensuring consistent clamping force without risk of overtightening and cracking aluminum or composite cover materials common on LS platform engines. Each bolt receives precise machining and surface treatment to resist corrosion, galling, and thread seizing—critical factors in engine compartments exposed to moisture, salt, and temperature extremes. The compact package (4.7 x 0.8 x 7.4 inches) ships ready to install with no additional hardware or thread-locking compound required for typical applications.

LS engine enthusiasts performing full builds, restorations, or engine bay refreshes will appreciate the security and longevity this kit provides compared to original fasteners or generic replacements. Installation is straightforward—remove old fasteners and install ARP bolts using standard hand tools and a 6-point wrench or socket for positive engagement. Compatibility is confirmed across LS1 and LS2 platform engines (1997–2004 Corvette, Camaro, Firebird, and later LS applications), making this kit an essential component for any serious engine builder or shade-tree mechanic committed to professional-quality assembly standards.