{"product_id":"umi-performance-heavy-duty-engine-mounts-g-body-gphp-90058","title":"UMI Performance Heavy Duty Engine Mounts — 1978-1988 GM G-Body | Steel Brackets, Black Powder Coat | 90058","description":"\u003cp\u003eThe UMI Performance P\/N 90058 heavy duty engine mounts for GM G-Body cars replace the heavy factory clamshell mount and locate the small block Chevy in the exact factory position. They are built to work with UMI's P\/N 90051 solid motor mounts or with the factory rubber mounts. The 3\/16in laser cut steel brackets and Grade 8 hardware are made to handle serious horsepower. Paired with solid motor mounts, they improve responsiveness and help prevent engine movement in tight packaging situations such as large header primaries or turbo setups. Solid engine mounts work best in racing applications and may add noise, vibration and harshness. The brackets are finished in gloss black powder coat and are made in the USA. Note: heavy duty engine mounts may not work with Oldsmobile or Pontiac engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeavy duty engine-side mounts for GM G-Body\u003c\/li\u003e\n\u003cli\u003eReplaces the factory clamshell mount\u003c\/li\u003e\n\u003cli\u003e3\/16in laser cut steel brackets\u003c\/li\u003e\n\u003cli\u003eGrade 8 hardware included\u003c\/li\u003e\n\u003cli\u003eGloss black powder coat finish\u003c\/li\u003e\n\u003cli\u003eWorks with UMI P\/N 90051 solid motor mounts or factory rubber mounts\u003c\/li\u003e\n\u003cli\u003eSold as a kit\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003ePart number: 90058\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e1978 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1979 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1980 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1981 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1982 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1983 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1984 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1985 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1986 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1987 Buick Regal\u003c\/li\u003e\n\u003cli\u003e1978 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1979 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1980 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1981 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1982 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1983 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1984 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1985 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1986 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1987 Chevrolet El Camino\u003c\/li\u003e\n\u003cli\u003e1978 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1979 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1980 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1981 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1982 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1983 Chevrolet Malibu\u003c\/li\u003e\n\u003cli\u003e1978 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1979 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1980 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1981 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1982 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1983 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1984 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1985 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1986 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1987 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1988 Chevrolet Monte Carlo\u003c\/li\u003e\n\u003cli\u003e1978 GMC Caballero\u003c\/li\u003e\n\u003cli\u003e1979 GMC Caballero\u003c\/li\u003e\n\u003cli\u003e1980 GMC Caballero\u003c\/li\u003e\n\u003cli\u003e1981 GMC Caballero\u003c\/li\u003e\n\u003cli\u003e1982 GMC Caballero\u003c\/li\u003e\n\u003cli\u003e1983 GMC Caballero\u003c\/li\u003e\n\u003cli\u003e1984 GMC Caballero\u003c\/li\u003e\n\u003cli\u003e1985 GMC Caballero\u003c\/li\u003e\n\u003cli\u003e1986 GMC Caballero\u003c\/li\u003e\n\u003cli\u003e1987 GMC Caballero\u003c\/li\u003e\n\u003cli\u003e1978 Oldsmobile Cutlass\u003c\/li\u003e\n\u003cli\u003e1979 Oldsmobile Cutlass\u003c\/li\u003e\n\u003cli\u003e1980 Oldsmobile Cutlass\u003c\/li\u003e\n\u003cli\u003e1981 Oldsmobile Cutlass\u003c\/li\u003e\n\u003cli\u003e1978 Oldsmobile Cutlass Calais\u003c\/li\u003e\n\u003cli\u003e1979 Oldsmobile Cutlass Calais\u003c\/li\u003e\n\u003cli\u003e1980 Oldsmobile Cutlass Calais\u003c\/li\u003e\n\u003cli\u003e1981 Oldsmobile Cutlass Calais\u003c\/li\u003e\n\u003cli\u003e1982 Oldsmobile Cutlass Calais\u003c\/li\u003e\n\u003cli\u003e1983 Oldsmobile Cutlass Calais\u003c\/li\u003e\n\u003cli\u003e1984 Oldsmobile Cutlass Calais\u003c\/li\u003e\n\u003cli\u003e1982 Oldsmobile Cutlass Ciera\u003c\/li\u003e\n\u003cli\u003e1983 Oldsmobile Cutlass Ciera\u003c\/li\u003e\n\u003cli\u003e1984 Oldsmobile Cutlass Ciera\u003c\/li\u003e\n\u003cli\u003e1985 Oldsmobile Cutlass Ciera\u003c\/li\u003e\n\u003cli\u003e1986 Oldsmobile Cutlass Ciera\u003c\/li\u003e\n\u003cli\u003e1987 Oldsmobile Cutlass Ciera\u003c\/li\u003e\n\u003cli\u003e1988 Oldsmobile Cutlass Ciera\u003c\/li\u003e\n\u003cli\u003e1980 Oldsmobile Cutlass Cruiser\u003c\/li\u003e\n\u003cli\u003e1981 Oldsmobile Cutlass Cruiser\u003c\/li\u003e\n\u003cli\u003e1982 Oldsmobile Cutlass Cruiser\u003c\/li\u003e\n\u003cli\u003e1983 Oldsmobile Cutlass Cruiser\u003c\/li\u003e\n\u003cli\u003e1978 Oldsmobile Cutlass Salon\u003c\/li\u003e\n\u003cli\u003e1979 Oldsmobile Cutlass Salon\u003c\/li\u003e\n\u003cli\u003e1980 Oldsmobile Cutlass Salon\u003c\/li\u003e\n\u003cli\u003e1985 Oldsmobile Cutlass Salon\u003c\/li\u003e\n\u003cli\u003e1986 Oldsmobile Cutlass Salon\u003c\/li\u003e\n\u003cli\u003e1987 Oldsmobile Cutlass Salon\u003c\/li\u003e\n\u003cli\u003e1978 Oldsmobile Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003e1979 Oldsmobile Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003e1980 Oldsmobile Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003e1981 Oldsmobile Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003e1982 Oldsmobile Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003e1983 Oldsmobile Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003e1984 Oldsmobile Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003e1985 Oldsmobile Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003e1986 Oldsmobile Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003e1987 Oldsmobile Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003e1988 Oldsmobile Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003e1982 Pontiac Bonneville\u003c\/li\u003e\n\u003cli\u003e1983 Pontiac Bonneville\u003c\/li\u003e\n\u003cli\u003e1984 Pontiac Bonneville\u003c\/li\u003e\n\u003cli\u003e1985 Pontiac Bonneville\u003c\/li\u003e\n\u003cli\u003e1986 Pontiac Bonneville\u003c\/li\u003e\n\u003cli\u003e1978 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1979 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1980 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1981 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1982 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1983 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1984 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1985 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1986 Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003e1987 Pontiac Grand Prix\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat vehicles do the UMI 90058 engine mounts fit?\u003c\/h5\u003e\u003cp\u003eThey fit 1978 to 1988 GM G-Body cars, including the Buick Regal, Chevrolet El Camino, Malibu and Monte Carlo, GMC Caballero, Oldsmobile Cutlass and Pontiac Grand Prix and Bonneville. See the Vehicle Applications list for the full year and model breakdown.\u003c\/p\u003e\u003ch5\u003eDo these mounts require cutting or welding to install?\u003c\/h5\u003e\u003cp\u003eNo. The 90058 brackets bolt into the factory engine mount location with the included Grade 8 hardware and place the small block Chevy in the stock position.\u003c\/p\u003e\u003ch5\u003eCan the 90058 mounts be used with factory rubber mounts?\u003c\/h5\u003e\u003cp\u003eYes. They are designed to work with UMI's P\/N 90051 solid motor mounts or with the factory rubber mounts, so the setup can be tuned for street or strip use.\u003c\/p\u003e\u003ch5\u003eWill solid engine mounts add noise and vibration?\u003c\/h5\u003e\u003cp\u003eSolid mounts transfer more engine movement to the chassis, so they can add some noise, vibration and harshness. They perform best in performance and racing applications.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What vehicles do the UMI 90058 engine mounts fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"They fit 1978 to 1988 GM G-Body cars, including the Buick Regal, Chevrolet El Camino, Malibu and Monte Carlo, GMC Caballero, Oldsmobile Cutlass and Pontiac Grand Prix and Bonneville. See the Vehicle Applications list for the full year and model breakdown.\"}},{\"@type\":\"Question\",\"name\":\"Do these mounts require cutting or welding to install?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. The 90058 brackets bolt into the factory engine mount location with the included Grade 8 hardware and place the small block Chevy in the stock position.\"}},{\"@type\":\"Question\",\"name\":\"Can the 90058 mounts be used with factory rubber mounts?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. They are designed to work with UMI's P\/N 90051 solid motor mounts or with the factory rubber mounts, so the setup can be tuned for street or strip use.\"}},{\"@type\":\"Question\",\"name\":\"Will solid engine mounts add noise and vibration?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Solid mounts transfer more engine movement to the chassis, so they can add some noise, vibration and harshness. They perform best in performance and racing applications.\"}}]}\u003c\/script\u003e","brand":"UMI Performance","offers":[{"title":"Default Title","offer_id":42635596759088,"sku":"GPHP_90058","price":49.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/UMI90058.jpg?v=1765286457","url":"https:\/\/berryperformancesales.com\/products\/umi-performance-heavy-duty-engine-mounts-g-body-gphp-90058","provider":"Berry Performance Sales","version":"1.0","type":"link"}