Spectre's flywheel bolt and lock washer set is made for many Chevy and Ford engines and includes grade‑8, 7/16"‑20 by 1" bolts with a black oxide finish and security lock washers. Supplied hardware is intended to secure flywheels reliably while providing corrosion resistance and the retention benefits of lock washers for drivetrain reassembly tasks on compatible engines.
Spectre Ford/Chevy Flywheel Bolts