Innovative Mounts B49150-85A B-Series Billet Conversion Engine Mount Kit 85A Grey

The Innovative Mounts B49150-85A is a CNC-machined billet 6061 aluminum conversion engine mount kit engineered for B-Series engine swaps using a hydraulic transmission. Designed to fit all B-Series motors — including the B16, B17, B18, and B20 — this kit delivers a precise, bolt-on fitment with no hood notching or trimming required, and even clears larger B20 engines.

Unlike OEM rubber mounts, Innovative Mounts eliminates the fluid-filled dampening chambers found in stock mounts. The result is reduced wheel hop, sharper throttle response, and improved overall driving dynamics. The 85A grey polyurethane bushings in this kit are tuned for high-horsepower and track-focused applications, providing a near-solid feel with minimal engine flex.

Kit Contents:

• 2x side mounts (billet 6061 aluminum)
• 1x rear mount (billet 6061 aluminum)
• All required mounting hardware

Note: Front mount is not included in this kit.

Bushing Durometer Options — Choose the Right Hardness for Your Build:

• 60A Red — Street (Up to 250 HP): Softest option; minimizes vibration transfer to the chassis for comfortable daily driving
• 75A Black — Street/Track (Up to 500 HP): Recommended for high-horsepower builds and dual-purpose street/track vehicles; stiffer feel with reduced engine flex
• 85A Grey — Track/Race (500+ HP): Maximum stiffness for dedicated race cars or drivers demanding near-solid engine retention; significant reduction in engine movement under load

All Innovative Mounts products are made in the USA and backed by a lifetime warranty. The 85A kit is sold in grey and is ideal for serious motorsport applications where precision engine control is critical.