Motor Mount Bolt Kit 6pt. LS1/LS2

The Motor Mount Bolt Kit 6pt. LS1/LS2 from ARP is engineered for LS-platform engine builders and street performance enthusiasts who demand absolute reliability during high-stress operation. Motor mounts isolate vibration and control engine movement under acceleration, deceleration, and cornering loads—but factory fasteners frequently fail under modified power levels, allowing excessive engine rocking that damages transmission mounts, breaks engine bay components, and creates dangerous drivetrain bind. This kit provides the structural integrity needed to keep your LS powerplant solidly anchored, whether you're running stock displacement or a boosted combination.

ARP's Motor Mount Bolt Kit features premium alloy fasteners with a 6-point head design that resists stripping and accepts standard tools without slipping. The 6pt. configuration distributes clamping force more efficiently than standard hardware, reducing the risk of bolt preload loss during thermal cycling and vibration exposure. These bolts are manufactured to exact tolerances and designed to work in concert with OEM or aftermarket motor mounts on both LS1 and LS2 engines, providing consistent clamping load across all mounting points. The compact 0.4 lb kit fits easily in your toolbox while delivering the precision needed for professional-grade engine installation.

Street racers, drag competitors, and weekend autocross drivers benefit most from this upgrade, as it eliminates a common point of failure in high-horsepower builds. Installation is straightforward during engine bay assembly or replacement—simply substitute these fasteners for original bolts when mounting the engine to the frame. Compatibility spans LS1 (1997–2004) and LS2 (2005–2007) engines across Chevrolet Corvettes, Camaros, and platform swaps into classic vehicles and custom chassis. Torque to manufacturer specifications and use a small amount of threadlocker to ensure permanent security under continuous driving conditions.