LS Engine Motor Mounts for 1984-1991 Chevy Corvette
Whether you plan a direct LS series swap into your C4 Corvette frame or wish to maintain factory weight balance the 1984-1991 Corvette LS Engine Mounts address your project by positioning the engine ahead of the OE transmission at the precise angle needed for OE fitment. Designed for seamless fitment with 4L60E and 4L80E gearsets without altering rails or modifying the tunnel this kit includes two mounts premium polyurethane bushings a full hardware pack and step by step instructions a design that ensures drivetrain alignment and reduces vibration. They bolt into existing chassis holes so no frame or chassis alterations are required and each bracket is fabricated in the United States to reduce noise and preserve steering balance.
Design and Fitment
The 1984 to 1991 Corvette LS Engine Mounts are engineered to deliver exact alignment for LS engine blocks in the C4 structure. Each bracket is precisely shaped to mate with the original frame sections, placing the engine at the manufacturer's specified height and angle. Correct positioning is vital for maintaining optimal driveshaft angle and slip yoke alignment, which in turn reduces universal joint stress and extends drivetrain life. The direct bolt in approach eliminates the need for any frame modification or adapter plates. These engine mounts also support the factory 4L60E and 4L80E transmissions without cutting the tunnel and preserve the stock exhaust and cooling system routing.
Durable Construction
Manufactured in the United States from heavy gauge steel, these mounts undergo laser cutting and CNC welding to ensure uniform thickness and strength. A corrosion resistant primer and finish coat protect against moisture and road debris. Internally, each steel housing holds a resilient polyurethane bushing that absorbs engine torque and dampens vibration better than conventional rubber. The polyurethane compound resists heat and chemicals, maintaining its load bearing properties over time. This robust design minimizes noise, harshness, and engine movement for a refined experience whether cruising or accelerating hard on track.
Installation and Compatibility
The complete kit includes all Grade 8 bolts, spacers, lock washers and illustrated step by step instructions to simplify assembly. Installation can be completed with basic hand tools in under three hours. Alignment of the engine is controlled by precision locating pins that align with factory holes. For enthusiasts using MuscleRods mounting towers, these brackets interface seamlessly to preserve the correct engine to transmission relationship. This partnership guarantees factory spec drivetrain angles and proper driveshaft centerline, reducing premature joint wear. No special modifications or tunnel cutting are required, making this solution ideal for both home builders and professional shops.
Trust these motor mounts to secure your LS engine with accurate alignment and lasting durability.