Bellhousing GM LS1 to T56

The Quick Time Bellhousing GM LS1 to T56 is a precision-engineered adapter designed to mate the GM LS-series engine family with the Tremec T56 six-speed manual transmission. This steel bellhousing serves as the critical mechanical interface between engine and gearbox, enabling engine swaps and performance builds that demand reliable, repeatable engagement with minimal runout.

Built from steel and finished in durable black paint, the RM-8020 includes all required mounting hardware for installation. The unit meets SFI 6.1 certification, a safety standard for motorsports bellhousings that ensures the assembly can safely contain internal components in high-stress engine swap applications. At 31.65 lbs and measuring 18.7 x 8.3 x 18.7 inches, this bellhousing is engineered to maintain precise concentricity between the crankshaft and transmission input shaft—critical for smooth shifting and extended drivetrain life in street and competition LS builds.

This adapter is essential for LS engine conversions into platforms originally equipped with different transmission families or non-LS powerplants. Street rodders, restoration specialists, and performance enthusiasts rely on Quick Time bellhousings to execute engine swaps with factory-level fit and finish. The included block plate and hardware streamline installation, reducing downtime and eliminating the need to source fasteners separately. Whether building a classic truck restomod, converting a vintage chassis to LS power, or upgrading an existing platform, this bellhousing delivers the precision interface required for dependable long-term operation.