BK Racing Solid Billet Upper Engine Mounts were developed specifically for Chevrolet Cavalier and Pontiac Sunfire performance builds where the factory rubber upper mount allows excessive drivetrain movement, violent wheel hop, missed shifts, torque steer, and inconsistent traction under acceleration.

If your J-body wheel hops under boost, shakes violently during launches, misses shifts at high RPM, or struggles to put power to the ground consistently, the factory upper engine mount is one of the biggest weak points in the entire drivetrain system.

The BK Racing 100% Solid Billet Upper Engine Mount completely eliminates the large amount of flex and movement found in the factory rubber mount by replacing it with a true zero-deflection billet aluminum design engineered specifically for drag racing, boosted Ecotec builds, F23 swap cars, autocross setups, and high-horsepower street applications.

Unlike polyurethane inserts or partial-solid mounts that still allow drivetrain movement under load, the BK Racing mount uses a true fully solid billet design with zero compliance for maximum drivetrain control and power transfer.

Why J-Body Cars Suffer from Wheel Hop

Factory Cavalier and Sunfire engine mounts were designed primarily for comfort and vibration isolation — not aggressive launches, turbocharged power levels, sticky tires, or racing conditions.

As horsepower, clutch shock, suspension grip, and boost pressure increase, the factory rubber mount rapidly flexes and allows the drivetrain to violently rotate during acceleration. This movement repeatedly loads and unloads the tires creating wheel hop that:

• Destroys traction
• Hurts 60-foot times
• Slows acceleration
• Causes missed shifts
• Increases axle and transmission stress
• Creates inconsistent launches
• Reduces throttle control
• Wastes horsepower

In many Ecotec builds, drivetrain movement becomes the limiting factor long before engine power does.

The BK Racing Solid Billet Upper Engine Mount was designed specifically to eliminate this drivetrain movement and dramatically improve traction consistency and launch stability.

Why Solid Billet Mounts Work Better Than Polyurethane Inserts

Many aftermarket “performance mounts” still rely on polyurethane inserts or partial-solid designs that continue to flex under heavy load and eventually wear out over time.

The BK Racing fully solid billet design creates a direct mechanical connection between the drivetrain and chassis for maximum rigidity and power transfer without the unwanted compliance found in rubber or polyurethane mounts.

The result is:

• Dramatically reduced wheel hop
• Improved launch traction
• Sharper throttle response
• More consistent shifting at high RPM
• Reduced drivetrain movement under boost
• Increased clutch engagement consistency
• Improved axle stability
• Better overall traction and power transfer

Features

• 100% solid billet aluminum construction
• Zero-deflection drivetrain mounting
• CNC-machined 6061 billet aluminum
• Black anodized finish with engraved BK Racing logo
• Significantly lighter than factory mounts
• Direct bolt-in replacement using OEM mounting locations
• Designed specifically for J-body performance applications

Compatibility

Compatible with:

• 1995–2005 Chevrolet Cavalier
• 1995–2005 Pontiac Sunfire
• Ecotec 2.2L applications
• LN2 / OHV applications
• 2.4L Twin Cam / Z24 applications
• Manual and automatic transmission setups

Commonly used with:

• F23 manual transmission swaps
• Turbocharged Ecotec builds
• Drag racing setups
• Circle track cars
• Roll racing builds
• Lowered suspension setups

Performance Applications

• Drag racing
• Roll racing
• Turbocharged street cars
• High horsepower Ecotec builds
• Autocross
• Circle track racing
• Track-prepped J-body vehicles

Customers commonly pair the BK Racing Solid Billet Upper Engine Mount with BK Racing solid dogbone mounts, transmission swap mounts, traction blocks, suspension bushings, and sticky tire combinations for maximum drivetrain control and launch consistency.

NVH Note

Because this is a true 100% solid race-style engine mount with zero compliance, additional engine vibration and chassis feedback compared to factory rubber or polyurethane mounts should be expected. This mount was developed specifically for serious performance enthusiasts prioritizing traction, drivetrain stability, and power transfer over factory comfort.

If your Cavalier or Sunfire suffers from wheel hop, drivetrain movement, inconsistent launches, or poor traction under power, the factory upper mount is likely one of the biggest contributors.

Professional installation recommended.

Designed for off-road and racing applications only.