Bellhousing Alum GM LS 102t 5.5in

The Bellhousing Aluminum GM LS 102-Tooth 5.5-inch from TILTON (part number 52-681) is a precision-engineered bellhousing designed for GM LS-series engine swaps requiring reverse-mount starter configuration. Built from aluminum construction in natural finish, this bellhousing accommodates a 102-tooth flywheel and a 5.5-inch clutch package, making it a core component for builders executing LS drivetrain conversions into non-LS platforms.

The aluminum construction reduces overall weight compared to cast-iron alternatives while maintaining the rigidity required to properly locate the transmission to the engine block. The 5.5-inch clutch specification indicates this bellhousing is optimized for moderate-duty street performance and road-racing applications rather than extreme drag-racing loads. The reverse-mount starter design is essential when the original vehicle's starter location is incompatible with a traditional LS starter orientation—a common constraint in engine-swap projects where mounting space or accessory positioning forces non-standard configurations.

This bellhousing is intended for experienced automotive builders and machine shops performing LS engine conversions. It serves builders who have already selected their specific 102-tooth flywheel and 5.5-inch clutch assembly and need a properly-engineered interface between the LS engine and a non-LS transmission. Typical applications include classic car restorations, first-generation F-body conversions, and street-rod projects where LS power is desired but original mounting points require custom solutions.

TILTON is recognized in the automotive performance sector for manufacturing high-precision clutch and drivetrain components used in racing and serious street applications. LS engine conversions have become a standard practice for extending the lifespan and capability of older vehicles, and bellhousing selection is critical to ensuring proper engine-to-transmission alignment and clutch function.