Michigan Motorsports 1999-2000 6.0L LS Flexplate for Long Crank | MMFLEXPBLLC | Fits LQ4 Engines with 6-Bolt Crankshaft | SFI-Rated High-Strength Flat Flexplate | Durable LS Transmission Upgrade

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.

• Precision Fit for Long Crank LQ4 Engines: Designed for 1999–2000 6.0L LS engines with the long crankshaft configuration—ensures proper converter engagement and spacing.
• SFI 29.1 Certified for Safety: Meets professional motorsport SFI standards for flexplate strength and safety in high-RPM, high-load applications.
• High-Strength Billet Steel Construction: CNC-machined from durable, heat-treated steel for exceptional rigidity and resistance to flex or cracking.
• Flat-Style 6-Bolt Design: Perfect replacement for early Gen III LS engines requiring a flat flexplate layout; maintains precise torque converter alignment.
• Michigan Motorsports Quality: Engineered and tested by LS experts for superior fitment, durability, and performance in both stock and high-horsepower builds.