Motor Mount Shim Kit

The MOROSO Motor Mount Shim Kit (SKU MOR62535) is a precision engineered spacing solution designed to correct engine mount misalignment and optimize powertrain geometry in performance and modified vehicles. Whether you're dealing with engine bay clearance issues, incorrect engine height after a swap, or vibration problems stemming from poor mount contact, this shim kit addresses the root cause rather than masking symptoms with worn bushings or soft mounts. Built for serious enthusiasts and professional shops, it's an essential tool for any comprehensive engine bay tuning or rebuild project.

Motor mounts transmit engine torque and absorb vibration through direct contact between the mount bracket and chassis frame. When that contact surface is uneven—due to casting variations, frame modifications, or engine swap incompatibilities—you get premature bushing failure and transmitted vibration into the cabin. The MOROSO kit provides precision shims in carefully selected thicknesses to restore full surface-to-surface mount contact, ensuring load distribution across the entire bracket footprint. This restores proper engine attitude, reduces NVH (noise, vibration, harshness), and extends mount service life significantly compared to running misaligned without correction.

Engine builders, fabricators, and DIY enthusiasts working on LS swaps, small-block Chevy platforms, and other popular engine conversions rely on motor mount shimming to dial in final geometry. Installation requires only basic hand tools—remove the mount bolt, slide shims between bracket and frame, and reassemble. The lightweight design (2.52 lbs) makes this kit easy to carry and store in any shop or garage. Always verify mount clearance and torque specifications after installation; proper shimming completes any engine swap or long-block refresh and eliminates a common source of post-installation complaints.