The SPEC steel flywheel for GM late 3800/supercharged engines mated to F23 transmissions is a straightforward replacement steel unit intended to restore driveline mass and clutch engagement characteristics for that swap. It provides a reliable, durable surface for clutch contact in street and mild performance applications where a stock-style steel flywheel is preferred over lightweight alternatives.
Spec GM Late 3800/Supercharged to F23 3+ Steel Flywheel