BMR MM460H Poly Motor Mount Kit for 78-87 GM G-Body (Upper/Lower)

Vehicle Fitment

• 1978-1987 GM G-Body (Buick, Chevrolet, Oldsmobile, Pontiac - RWD)

Features

• Upper and lower performance motor mount kit for classic GM G-Body
• Polyurethane bushings reduce engine deflection under load
• MIG-welded 3/16" plate steel construction for strength and durability
• 95-durometer polyurethane bushings for improved power transfer
• Precision bolt-in design - no cutting or modification needed
• Improves throttle response and shift accuracy
• Compatible with street, drag, and road racing applications
• Durable powdercoat finish resists corrosion and wear

Specifications

• Part Number: MM460H - Black hammertone finish
• Material: 3/16" MIG-welded plate steel & polyurethane
• Bushing Durometer: 95A
• Compatibility: 1978-1987 GM G-Body platforms
• Installation Time: ~2-3 hours
• Drivetrain: Rear-Wheel Drive (RWD)
• Application: Upper and lower motor mounts
• Exclusions: Not for non-G-Body GM platforms

Included Components

• 1x Upper motor mount bracket with polyurethane bushing
• 1x Lower motor mount bracket with polyurethane bushing
• Hardware kit (Grade 8 bolts and washers)

Product Description

The BMR MM460H Motor Mount Kit is engineered for 1978-1987 GM G-Body vehicles - including Buick Regal (Base, Grand National, GNX), Chevrolet Monte Carlo, El Camino, Malibu, Oldsmobile Cutlass, and Pontiac Grand Prix models. This upper and lower mount set replaces the stock rubber mounts with robust polyurethane bushings and MIG-welded steel brackets to drastically reduce engine movement and deflection during acceleration and hard driving. Less deflection means improved throttle response, quicker reaction times, and more accurate shifts - especially on manual transmissions.

Designed for performance enthusiasts, this mount kit is 100% bolt-in and built with quality materials to withstand street, drag, and road racing environments. The polyurethane bushings isolate much of the engine vibration while still delivering firm engine support, enhancing overall power transfer to the wheels. Installation typically takes about 2-3 hours with common hand tools. Proudly made in the USA with a durable black hammertone powdercoat, the MM460H kit is a solid upgrade over factory hydraulic mounts for any classic G-Body restoration or performance build.