Manley 290960RHX SBC Stroker Rotating Assembly Stroke Bore - 383 3.750 4.060

The Manley 290960RHX is a complete Small Block Chevy (SBC) 383 cubic inch stroker rotating assembly designed to increase displacement and maximize power output from your GM small block engine. Built around a 3.750" stroke crankshaft and matched with 4.060" bore forged pistons, this kit delivers the displacement upgrade and durability demanded by high-performance street and race applications.

Key Features:

• 3.750" stroke crankshaft for full 383 cubic inch displacement
• 4.060" bore forged pistons for precise fitment and strength
• Manley forged 4340 steel crankshaft construction for superior strength and fatigue resistance
• Manley forged H-beam or I-beam connecting rods engineered for high-RPM durability
• Forged pistons with tight tolerances for consistent compression and ring seal
• Designed as a complete rotating assembly kit — crankshaft, connecting rods, and pistons matched and ready to assemble
• Compatible with standard Small Block Chevy 350 main journal blocks
• Suitable for street performance, strip, and road racing applications

Manley Performance is a trusted name in high-performance engine components, and the 290960RHX rotating assembly reflects their commitment to precision manufacturing and race-proven engineering. This kit provides the foundation for a reliable, high-output 383 stroker build.