LS Engine Mounts for 1984-1991 Chevy Corvette
For drivers installing an LS engine in a 1984 to 1991 Corvette, the 1984-1991 Corvette LS Engine Mounts position the V8 at the exact drivetrain angle needed for OE 4L60E or 4L80E transmission fitment. By matching factory frame rail dimensions and the transmission crossmember, they maintain original weight distribution and steering balance through cornering and braking. The heavy gauge steel plates resist flex under sudden torque shifts while polyurethane bushings absorb vibration and cut cabin noise. A complete hardware kit with step by step instructions lets you bolt in the mounts without trimming the frame or modifying the tunnel.
Factory Frame Rail Alignment for LS Integration
The mounts are engineered to match the original 1984-1991 Corvette frame rail and OE transmission crossmember dimensions, ensuring the LS engine sits at the exact drivetrain angle without any cutting or welding of the chassis. This precise placement preserves the Corvette's factory weight distribution and suspension geometry, which translates directly into predictable steering balance and consistent cornering behavior. By maintaining the intended engine position, the design reduces stress on the driveline components, prevents premature wear on U-joints and universal joints, and safeguards the integrity of the transmission housing. Retaining the stock mounting points also means the C4 chassis retains its factory rigidity and factory frame strength, delivering the handling character Corvette owners expect. With no tunnel modification required, you preserve both the structure and resale value of your classic sports car.
Heavy Gauge Steel Construction for Torque Resistance
Fabricated from thick steel plate, each mount bracket provides a sturdy foundation capable of resisting the high torque output of modern LS engines. Critical weld seams are completed with precision TIG welding to form a solid cradle that holds the powerplant firmly under sudden throttle bursts and abrupt downshifts. American production allows for stringent quality control, guaranteeing consistent material hardness and weld integrity across every unit. This robust construction minimizes flexing at the mounting points, which helps prevent misalignment and fatigue cracks over extended use. Whether you're cruising on the street or pushing your Corvette on a road course, these steel plates deliver unwavering support.
Premium Polyurethane Bushings for Controlled Vibration
The engine mounts feature performance grade polyurethane bushings that outperform traditional rubber in resisting heat, oil contamination and permanent compression set. Unlike softer materials that degrade over time, these bushings maintain their shape and stiffness through countless heat cycles, ensuring that the engine remains firmly located within the chassis. The compound effectively absorbs vibration, keeping unwanted noise out of the cabin while still providing enough compliance to reduce shock loads on the frame. By preserving alignment under load, the bushings eliminate drivetrain lash and minimize wear on connected components. The result is a smooth yet responsive driving experience that stands up to spirited acceleration and hard braking.
Comprehensive Installation Kit for Effortless Setup
Every component you need for the swap is included in the kit, from the pair of engine mounts to the matching bolts, washers and detailed hardware pack. Clear, step by step instructions walk you through the installation process, guiding you to use existing factory holes so you can avoid drilling or trimming the frame rails and transmission tunnel. This bolt in solution saves valuable shop time and removes guesswork from the project, ensuring each bracket seats against full metal surface for optimum load transfer. Whether you're a professional builder or a dedicated enthusiast, the complete hardware kit streamlines the LS engine conversion so you can get back on the road with confidence.
Engineered for precise fit and durable support, these mounts ensure lasting performance and confidence in your LS swap.