LS Engine Mounts Pair

The LS Engine Mounts Pair (KRC 79000000) is a bolt-on motor mount system engineered to securely attach GM LS-series powerplants to Small Block Chevy chassis platforms, commonly paired with CT525 transmission configurations. Built for high-performance street and competition builds, these mounts isolate engine vibration while maintaining rigid alignment under load—critical for vehicles running elevated power outputs or experiencing frequent throttle cycles. Whether you're swapping a Gen III/IV LS engine into a classic chassis or upgrading an existing installation, this pair delivers the structural integrity and precision fitment that separates reliable long-term performance from chronic mounting failures.

Constructed from robust steel and finished in black powder coat, the LS Engine Mounts Pair resists corrosion and road salt degradation while providing the durability expected in high-vibration environments. The bolt-on design eliminates welding and complex modifications, allowing straightforward installation on Small Block Chevy frames without sacrificing load-bearing capacity. Steel mounts of this caliber provide superior damping compared to rubber-isolated alternatives, reducing parasitic vibration transfer to the chassis frame and drivetrain components—a measurable advantage in vehicles with stiff suspension geometry or rigidly mounted transmissions. At 4.8 lbs total weight and compact dimensions (6.6 x 4.3 x 13.3 inches), the pair maintains a minimal footprint without compromising structural mass where it counts.

Builders and restorers executing LS-to-vintage-chassis conversions rely on properly engineered motor mounts to eliminate binding, noise, and premature bearing wear that plague undersized or misaligned systems. This pair is purpose-designed for the specific geometry of Small Block Chevy frames paired with LS engine blocks and CT525 transmissions, ensuring that bolt holes align, weight distribution remains balanced, and vibration transfer stays within acceptable thresholds. Installation typically requires basic hand tools and moderate mechanical competency; refer to chassis-specific swap guides and torque specifications to verify clearance and fastener compatibility before final assembly. Professional installations and DIY enthusiasts alike benefit from the structural reliability and proven longevity this mount solution delivers.