Billet Steel Flywheel SFI Pont. V8 1964-85

The Billet Steel Flywheel SFI Pont. V8 1964-85 from PRW Industries is the premium internal-balance solution for serious Pontiac V8 builders and hot rod enthusiasts. Whether you're restoring a classic GTO, building a weekend warrior, or upgrading a performance street engine, this 166-tooth billet steel flywheel delivers the reliability and precision that separates quality restorations from amateur builds. SFI 1.1 certification ensures this component meets the safety standards demanded by sanctioning bodies and responsible performance shops.

Machined from billet steel rather than cast iron, this flywheel resists cracking under the thermal and mechanical stress of sustained high-RPM operation—a critical advantage over OEM cast units. The internal balance design integrates directly with your engine's harmonic damper and crankshaft counterweights, eliminating the need for external balancing hardware and simplifying drivetrain geometry. At 31.05 lbs, it's engineered for the specific mass and inertia characteristics of Pontiac V8 engines, ensuring predictable engagement with your clutch system and reliable torque multiplication through the transmission. The two-piece seal design accommodates both early and later-model Pontiac block configurations from 1964 through 1985, making it a versatile platform upgrade for diverse restoration projects.

This flywheel is ideal for builders transitioning to modern or performance clutches, where the precision of billet construction matters most. If you're installing a solid roller camshaft, upgrading ignition timing control, or preparing for sustained track use, the durability of billet steel justifies the investment over cast replacements. Installation requires professional machine shop balancing to your specific engine assembly; verify internal balance specifications with your engine builder before purchase to ensure compatibility with your crankshaft and damper configuration.