• Main and Connecting Rod Bearings
• Internal Balanced Rotating Assemblies DO NOT Include Flexplate and Harmonic Damper
• Unbalanced Rotating Assemblies DO NOT Include Flexplate and Harmonic Damper
• Crank/Rod/Piston Kits DO NOT Include Piston Rings, Main and Connecting Rod Bearings, Flexplate or Harmonic Damper

When you demand strength, precision, and peace of mind from your build’s bottom end, the Scat 351 Windsor 4340 Forged Standard Weight Competition Rotating Assembly delivers. This high-performance kit is engineered for reliability under high stress, combining premium forged components with precise matching and careful balancing to create a solid foundation for your 351W powerplant.

Built around a 4340 forged-steel crankshaft – machined to standard weight specs and nitride-hardened for added durability – this assembly handles the demands of aggressive stroke and power targets. The included forged I-beam rods and matched pistons, rings, and bearings are all selected for compatibility and durability. When you install this as a single, cohesive unit, you eliminate the variation and uncertainty that often comes with sourcing separate parts.

In operation, this 351w rotating assembly works to deliver responsive performance and increased reliability. Each component is spec-matched and balanced to reduce vibration, maximize longevity, and maintain predictable behavior at high RPM. That helps preserve clearances, maintain oiling stability, and prevent fatigue failure under load.

If you’re building a stroker 351 Windsor, a restomod road warrior, or a track-ready beast, the 351 Windsor rotating assembly is designed to take your bottom end worry off the table. Its robust build quality and compatibility with common machine shop tolerances make it well-suited for both boutique and shop-level builds.

Choose this 351w forged rotating assembly when you’re ready to step up your drivetrain. Install it with proper clearances, break it in correctly, and expect a foundation that supports power, reliability, and longevity for the long haul.