Darton Sleeves 100-2003 Small Block Chevy 4.120" Bore Cylinder Sleeve

The Darton Sleeves 100-2003 is a precision-engineered cylinder sleeve designed specifically for Small Block Chevy engines. This high-performance sleeve features a 4.120-inch bore diameter and is manufactured to exacting tolerances for optimal fit and performance in demanding racing and high-output street applications.

Key Features:

• 4.120-inch bore diameter for Small Block Chevy applications
• Precision-machined from high-quality ductile iron material
• Designed for use with Bow-Tie SBC blocks
• 4.272-inch outer diameter for proper interference fit
• Engineered to handle extreme cylinder pressures and temperatures
• Provides superior thermal conductivity and dimensional stability
• Allows for increased displacement and performance optimization

Darton Sleeves are renowned in the performance and racing communities for their exceptional quality and durability. This sleeve enables engine builders to achieve larger bore sizes while maintaining cylinder wall integrity, making it ideal for high-horsepower builds, forced induction applications, and competition engines where reliability is critical.