SBC F-43 Forged Crank - 3.500 Stroke 4-350-3500-5700-18LW

If you're building or rebuilding a small block Chevy engine for serious performance, your crankshaft is non-negotiable—it's the backbone of your bottom end. The SBC F-43 Forged Crank delivers the stroke geometry and internal balance you need for reliable power delivery, whether you're targeting a naturally aspirated build or preparing for forced induction. At 3.500 inches, this stroke hits the sweet spot for displacement and RPM capability across a wide range of small block applications.

The F-43 Series reputation for durability comes from its forged steel construction, which handles sustained high-RPM loads without compromise. Internal balancing eliminates harmonics that would otherwise rob you of smoothness and efficiency, and the 2-piece rear seal compatibility makes installation straightforward without custom machine work.

• 3.500-inch stroke
• Forged steel construction
• F-43 Series design
• Internal balanced
• 2-piece seal compatible
• Small block Chevy fitment
• MPN: 4-350-3500-5700-18LW