Steel SFI Flywheel - Olds V8 260-455 68-85

The Steel SFI Flywheel for Olds V8 260-455 from PRW Industries is engineered for high-performance street and competition builds where reliability and weight control matter. This flywheel is built for Oldsmobile V8 engines spanning 1968 to 1985, making it a go-to choice for restorations, engine swaps, and power-adder applications.

Whether you're upgrading from a worn cast-iron stock unit or building a modified engine package, this forged steel flywheel provides the durability needed for consistent torque delivery and clutch engagement across a wide RPM range. At 31.45 pounds, this steel flywheel balances inertial mass with thermal stability—critical for engines handling boost, nitrous, or aggressive cam timing. The SFI certification means it meets containment standards, protecting your drivetrain in the event of a catastrophic failure; this is mandatory for serious street-strip cars and track use.

Steel construction resists cracking and distortion better than cast iron under sustained heat, especially in turbocharged or supercharged 455 builds where stock flywheels fail prematurely. The precision-machined surfaces ensure true flywheel-to-crankshaft runout and even clamping load across a modern or vintage clutch assembly. This flywheel is ideal for Olds V8 enthusiasts upgrading to modern clutch systems, converting to fuel injection, or installing higher-displacement stroker kits (from 260 to 455 cubic inches).