Manley 290930HX SBC Stroker Kit Stroke Bore Small Block Chevy Engine Crankshaft Rotating Assembly - 383 3.750 4.030

The Manley 290930HX is a complete Small Block Chevy (SBC) 383 Stroker Kit designed for enthusiasts and engine builders looking to extract maximum displacement and performance from a standard 350 small block Chevrolet block. By combining a 3.750" stroke crankshaft with a 4.030" bore, this kit delivers the classic 383 cubic inch displacement upgrade that has been a staple of high-performance street and strip builds for decades.

Key Features:

• Stroke: 3.750 inches — the defining dimension of the 383 stroker configuration
• Bore: 4.030 inches — fits standard SBC 350 blocks bored 0.030" over
• Manley Performance quality components engineered for strength and durability
• Designed for high-horsepower street performance and racing applications
• Precision-manufactured to tight tolerances for proper fit and long engine life
• Compatible with standard Small Block Chevy (Gen I) engine architecture

Manley Performance has been a trusted name in high-performance engine components for over 50 years, offering products that meet the demands of professional engine builders and serious enthusiasts alike. The 290930HX SBC 383 Stroker Kit is an ideal foundation for anyone building a reliable, high-output 383 cubic inch small block Chevy engine.