SBC Iron Little M Block 4.125 Bore 9.025 DH

The SBC Iron Little M Block 4.125 Bore 9.025 Deck Height from DART is designed for automotive enthusiasts and engine builders looking for a robust foundation for small-block Chevrolet performance builds. This cast-iron block is suitable for both street and competition applications, providing the structural integrity and dimensional consistency necessary for extensive engine modifications.

Constructed from cast iron, this block offers superior thermal stability and longevity compared to aluminum alternatives, making it ideal for high-heat environments. The 4.125-inch bore allows for modern piston and ring technology, while the 9.025-inch deck height ensures precise combustion chamber geometry, optimizing compression ratios and fuel efficiency. DART's engineering includes proper coolant jacket sizing and oil gallery flow, essential for high-rpm operation.

This block is particularly beneficial for builders aiming for maximum displacement within small-block parameters, whether for street rods or performance builds. Its solid construction resists distortion under pressure, making it a reliable choice for various applications. Engine builders can trust this block to support their performance goals while maintaining the classic small-block architecture.