The Michigan Motorsports 6.0L Flat LS Flexplate (MMFLEXPBLLC) is built for strength, precision, and reliability in 1999–2000 GM LQ4 engines featuring the long crankshaft design. This SFI-rated flexplate is manufactured from premium billet steel and designed to handle the rigors of high-torque LS applications, making it ideal for both street performance and racing builds. It replaces the factory GM flexplate while maintaining perfect alignment and balance between the crankshaft and torque converter. The flat-style design is specifically engineered for early 6.0L LQ4 engines and features a 6-bolt crank pattern for secure engagement. Whether performing an LS swap, transmission rebuild, or engine refresh, this high-strength flexplate ensures smooth power transfer and lasting durability under extreme conditions.