Flexplate SFI C/M GM LS Engine (Except Truck)

The Flexplate SFI C/M GM LS Engine is a critical drivetrain component engineered for non-truck LS engine swaps and high-performance builds. As a dedicated mechanic who has overseen countless LS conversions, this flexplate serves as the mechanical bridge between your engine's crankshaft and automatic transmission, absorbing rotational energy while maintaining SFI certification for safety. Whether you're building a street rod, restomod, or dedicated race car, this component is non-negotiable for reliable power transfer and longevity.

Manufactured by B and M AUTOMOTIVE, this flexplate features SFI-certified construction that meets strict safety standards for dynamic engine applications. The C/M designation indicates its designed compatibility with specific GM transmission variants, ensuring proper bolt spacing, balance characteristics, and bolt hole alignment for LS-family engines. At 6.75 pounds, this component is engineered from premium materials to withstand the high torque loads and rotational stresses inherent to LS power plants, whether you're running naturally aspirated or forced-induction setups. The precision-machined design minimizes vibration and ensures smooth engagement with your transmission's torque converter.

This flexplate is ideal for enthusiasts performing LS engine conversions into non-truck platforms—think Chevrolet Camaros, Corvettes, and custom hot rods where factory truck-specific components won't fit. Installation requires careful alignment with your crankshaft and transmission bell housing, and proper torque specification is essential to prevent slippage or catastrophic failure under load. Always verify that your transmission and converter are compatible before installation, and consider having a qualified technician handle the swap if you lack hands-on experience with drivetrain assembly.