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UMI Performance 78-88 GM G-Body Engine Side Solid Engine Mounts
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UMI Performance
UMI Performance

UMI Performance 78-88 GM G-Body Engine Side Solid Engine Mounts

$54.39

On Backorder — Expected to ship by Jun 7, 2026

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UMI Performance 78-88 GM G-Body Engine Side Solid Engine Mounts. These mounts improve responsiveness by reducing engine movement.

Key Features

  • Fits 1978-1988 GM G-Body vehicles including Buick Regal, Chevrolet Monte Carlo, and Oldsmobile Cutlass Supreme.
  • Replaces the factory clamshell engine mount for a more solid connection.
  • Constructed from tough 3/16” thick pickled mild steel plate.
  • CNC laser cut brackets ensure exact tolerances for a precise fit.
  • Includes Grade 8 mounting hardware for a strong connection.
  • Finished with a gloss black powder coat for durability and appearance.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

UMI Performance is known for making well-built suspension and drivetrain parts for American muscle cars. For your 1978-1988 GM G-Body, these solid engine mounts replace the factory clamshell style. They're designed to hold your Small Block Chevy in the exact factory position, and they can handle a lot of horsepower thanks to their tough 3/16” thick steel construction and Grade 8 hardware.

When you use these solid mounts, especially with UMI's P/N 90051 solid mounts, you'll notice improved responsiveness and less engine movement. This can be a big help when you're trying to fit large headers or turbo components. They are proudly used on UMI's own G-Body test car, the 1979 Monte Carlo “Green Machine,” and are manufactured in Philipsburg, PA. Keep in mind that solid mounts are best suited for racing applications and may increase noise and vibration inside the cabin. They may also not work with Oldsmobile or Pontiac engines.

Specifications

Brand
UMI Performance
Manufacturer Part #
90058
UPC
90058

Frequently Asked Questions

UMI Performance 78-88 GM G-Body Engine Side Solid Engine Mounts

$54.39