The P/N 90058 heavy duty engine mounts are designed to replace the factory clamshell mount, providing a sturdy and reliable solution for mounting Small Block Chevy engines in GM G-body cars.

Key Features:

• Precision Fit: These mounts ensure the engine is positioned exactly in the factory location.
• Compatibility: Can be used with either P/N 90051 solid motor mounts or the factory rubber mounts.
• Durable Construction: Made from tough 3/16” laser cut brackets and Grade 8 hardware, these mounts can handle high horsepower levels.

Performance Benefits:

• When paired with P/N 90051 solid engine mounts, these mounts enhance responsiveness and minimize engine movement.
• Particularly beneficial in applications with tight packaging, such as large header primaries or turbos.

Important Considerations:

• Solid engine mounts are best suited for racing applications.
• They may increase Noise, Vibration, and Harshness (NVH).

These heavy duty engine mounts, made from 3/16” thick pickled mild steel plate and CNC laser cut for precise tolerances, are a reliable and durable choice for your GM G-body car.