Fidanza 77-79 200SX L20 B Aluminum Flywheel

In this box, you'll find a Fidanza aluminum flywheel, designed specifically for your 1977-1979 Nissan 200SX with the L20B engine. This flywheel is a significant upgrade over the stock unit, offering a noticeable improvement in how quickly your engine can rev up. By reducing the rotational mass, it allows your engine to accelerate faster, making your car feel more responsive when you hit the gas.

Fidanza builds these flywheels from a billet 6061 T6 or 2024 T4 aluminum body, which is 40-60 percent lighter than the original. This lower moment of inertia (MOI) directly translates to quicker throttle response. For durability and consistent performance, it features a heat-treated friction plate that ensures optimal grip and a long lifespan. The ring gear is made of hardened 1050 steel and can be replaced if needed, and the unit uses military-spec fasteners for added reliability. The friction plate itself is also replaceable, making maintenance straightforward.