Mopar 426 Flywheel 143 Tooth Int. Balance 8 Blt

The Mopar 426 Flywheel 143 Tooth Internal Balance 8 Bolt is purpose-built for serious Mopar enthusiasts and performance mechanics upgrading classic and vintage Chrysler big-block engines. This flywheel serves as the critical interface between your engine's crankshaft and transmission, handling the rotational inertia and torque transfer that high-performance 426 Hemi and wedge builds demand.

Engineered with internal balance compensation, this 143-tooth flywheel integrates counterweights into the flywheel itself, eliminating the need for external balance modifications on your crank. This design simplifies engine assembly and ensures precise dynamic balance across the entire rotating mass. The 8-bolt attachment pattern secures directly to your 426 crankshaft, while the steel construction withstands the extreme torque loads generated by powerful Mopar engines.

At 37.63 pounds, this flywheel provides optimal inertia for street applications—heavy enough to smooth power delivery and engagement, yet responsive for performance needs. This Mopar 426 Flywheel is ideal for 426 Hemi and 426 wedge engine builds, ensuring reliability and performance for classic car restorations and builds.