SBC-BBC Engine Mount Kit

The SBC-BBC Engine Mount Kit from G FORCE CROSSMEMBERS is engineered for builders and mechanics performing small-block Chevrolet (SBC) to big-block Chevrolet (BBC) engine swaps or platform conversions. This kit addresses one of the most critical—and often overlooked—aspects of engine installation: isolating engine vibration and maintaining proper drivetrain alignment. Whether you're upgrading an older muscle car, building a street machine, or retrofitting a performance platform, proper engine mounting directly affects ride quality, component longevity, and overall driving experience. Without quality mounts, engine vibration transmits through the chassis, accelerating wear on transmission mounts, crossmembers, and surrounding welds.

This kit is designed to accommodate the mechanical differences between SBC and BBC engine packages, accounting for variations in mounting pad locations, bolt hole spacing, and overall engine geometry. G FORCE CROSSMEMBERS engineered these mounts to deliver robust isolation while maintaining the structural rigidity necessary for high-horsepower applications. The kit weighs 15.35 lbs and ships in a compact 10 x 5 x 10-inch package, making it manageable for shipping while containing all necessary hardware for a complete installation. Proper engine mounts reduce NVH (noise, vibration, harshness), improve shift quality, and protect the engine bay from unwanted movement during hard acceleration or braking events.

This SBC-BBC Engine Mount Kit is ideal for restoration shops, performance enthusiasts, and professional builders tackling engine conversions where OEM mounts are incompatible or inadequate. Installation pairs best with a quality crossmember upgrade, as the two components work together to create a stable engine platform. Mechanics working with custom frames, tube chassis builds, or vehicles requiring non-factory engine configurations will find this kit essential for achieving proper clearance and alignment. Verify your specific engine block variant and frame configuration before ordering to ensure correct fitment.