R & D Engine Mount w/4" Footprint - 5/8" Stud - 80-230lbs Capacity Per Mount

The R & D Engine Mount w/4" Footprint - 5/8" Stud - 80-230lbs Capacity Per Mount is engineered for builders and mechanics who demand precision isolation in high-performance engine applications. This engine mount serves as a critical vibration control component, decoupling engine oscillations from the chassis and frame to reduce NVH (noise, vibration, harshness) transmission. Whether you're assembling a restomod, adapting an engine to a non-original chassis, or fine-tuning an existing build, this mount's 4-inch footprint and adjustable load rating make it a versatile solution across multiple vehicle platforms and engine swap scenarios.

Constructed with a robust design, the R & D Engine Mount features a 5/8-inch stud for secure fastening and a load capacity range of 80–230 pounds per mount, allowing tuners to select the appropriate elastomer durometer and stack height for their specific engine weight and intended use. The 4-inch mounting footprint provides compatibility with common engine bay layouts while maintaining a compact profile that doesn't interfere with headers, intake manifolds, or accessory drive placement. This versatility in capacity and mounting geometry makes it suitable for both street applications requiring compliance and performance builds needing minimal deflection at full throttle.

Fabricators and restorers benefit most from this mount's broad capacity range—stack multiple units or select stiffer compounds to handle mid-engine swaps, LS conversions, or heavyweight V8 installations without sacrificing durability. Installation is straightforward: secure the 5/8-inch stud through the engine's mounting lug, then bolt the mount base to the frame or subframe using the 4-inch footprint dimensions. Verify engine clearance and ensure all four mounts are torqued evenly to prevent binding and premature elastomer failure. This component is essential for any serious engine modification project where OEM mounts are unavailable or inadequate.