UMI Performance · New
UMI Performance 78-88 GM G-Body Solid Engine Mount Kit
MPN 90059 · Store SKU umi90059
Supplier stock checked 11/7/2026, 10:56:24 AM UTC. Adding a part does not reserve it.
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Product details
The P/N 0059 solid engine mount kit for GM G and F-Body cars places the Small Block Chevy in exact factory location and uses our popular P/N 0051 solid lower mount combined with a laser cut block mount. Tough 3/16” laser cut brackets and Grade 8 hardware can handle as much horsepower as you can throw at them. Solid engine mounts improve responsiveness and help prevent engine movement, which can help in tight packaging situations (large header primaries, turbos, etc). Solid engine mounts work best in racing applications and may contribute to increased Noise, Vibration and Harshness. Available in gloss black powder coat. These engine mounts are proudly used on UMI’s G-Body test car, 1979 Monte Carlo “Green Machine”. 100% manufactured, tested and raced out of Philipsburg, PA – USA. Note: Heavy duty engine mounts may not work with Oldsmobile or Pontiac engines. 90059 - 1978-1988 GM G-Body Solid Engine Mount Kit 3/16” thick pickled mild steel plate CNC laser cut for exact tolerances Grade 8 mounting hardware included Gloss black powder coat finish
Manufacturer fitment & guides
Check 90059 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
