The Ducar aluminum flywheel is a high-quality performance component designed for durability and reliability. This flywheel is dynamically balanced and has been spin-tested up to 15,000 RPM to ensure consistent performance under racing conditions. A steel center hub adds strength and helps prevent damage to the crankshaft taper, while also featuring tapped holes for easy use with a flywheel puller. On non-hemi Predator 212 engines, the flywheel taper will need to be lapped extra to properly match the crankshaft. This flywheel is approved by all major sanctioning bodies.