UMI Performance 78-88 GM G-Body Solid Engine Mount KitThe 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