Motor Mount Adapter LS to SBC Adjustable

The Motor Mount Adapter LS to SBC Adjustable from ALLSTAR PERFORMANCE is a precision-engineered bolt-on solution designed for engine swappers and performance builders who need to mount LS-series engines into legacy GM platforms originally configured for small-block Chevrolet (SBC) powerplants. This adapter addresses one of the most common compatibility challenges in modern engine conversion work: bridging the dimensional and bolt-pattern differences between newer LS architecture and classic three-bolt mounting locations. Whether you're upgrading a classic muscle car, street rod, or performance build, this adapter eliminates the need for extensive frame modification or custom welding.

Constructed from aluminum and finished in black anodized coating, the Motor Mount Adapter LS to SBC Adjustable delivers both strength and corrosion resistance in a lightweight package. The adjustable design accommodates the necessary offset and angle correction required when transitioning from LS mounting geometry to GM 3-bolt specifications, ensuring proper engine placement and alignment within the engine bay. The aluminum construction keeps overall weight minimal—a critical factor in performance applications—while the black anodized finish protects against oxidation and chemical exposure inherent in engine compartments. This pairing approach means one order delivers matched left and right sides, simplifying installation and ensuring symmetrical support.

LS engine conversion enthusiasts, engine swap shops, and hot rod builders benefit most from this adapter's straightforward bolt-on design and field-proven adjustability. Installation does not require cutting frame rails or extensive fabrication, making it ideal for both professional shops seeking repeatable solutions and dedicated hobbyists tackling ground-up restorations. The 6.3 x 4.2 x 11.2-inch footprint and 2.67-pound weight per pair integrate seamlessly into compact engine bays. Verify your specific GM 3-bolt mounting configuration and LS engine variant before purchase to confirm compatibility with your platform.