Big Block Chev MK4 168 Tooth External Balance Flexplate

Upgrade your Big Block Chevy MK4 with Aeroflow’s 168-Tooth External Balance Flexplate. Built to handle today’s extreme power and RPM, this flexplate is engineered for 2-piece rear main seal MK4 engines, delivering a robust, high‑strength connection between engine and transmission that won’t back down under pressure.

• 168-tooth external balance design for smooth torque transfer at high horsepower and RPM
• Outside diameter: 14-1/8" (359 mm) to ensure proper fit and driveline geometry across a range of transmissions
• Designed for 2-piece rear main seal MK4 engines
• Includes two converter bolt patterns: 10.5" and 11.5" bolt circles
• Constructed from extra-thick material, double welded and anodised for enhanced durability
• Built to withstand demanding performance in high-torque street cars and race-inspired builds

Fitment & Compatibility

Confirm your drivetrain configuration and verify the required converter bolt circle before installation to ensure a precise, secure fit.

Performance & Use Cases

Ideal for high-torque street applications and race‑inspired builds that demand a balanced, reliable connection between the engine and transmission, optimized for today’s power levels and RPM ranges.