Flexplate 168T 454 SFI External Balance

The Flexplate 168T 454 SFI External Balance by ALLSTAR PERFORMANCE is a precision-engineered component designed for high-displacement big-block engines requiring external balancing. This flex plate serves as the critical interface between your engine's crankshaft and automatic transmission torque converter, absorbing rotational forces while accommodating the unique balance characteristics of stroker and modified 454 cubic-inch applications.

Constructed to meet rigorous performance standards, this 168-tooth flex plate incorporates an external balance design to match the counterweight configuration of your specific crankshaft. This design helps eliminate harmonic imbalances that can lead to drivetrain noise and component failure. The robust construction ensures durability under extreme torque loads typical of high-performance applications.

Engine builders upgrading to aftermarket crankshafts, stroker kits, or fuel-injected 454 platforms will find this flex plate beneficial, especially where factory balance specifications no longer apply. Proper installation requires confirming your engine's balance specification and ensuring compatibility with your engine's balancer and crankshaft assembly.