DART BBC Big M Iron Block Engine Part 31223644 with 4.600 Inch Bore and 9.800 Inch Deck Height

The DART BBC Big M Iron Block engine component, part number 31223644, is designed for high-performance applications requiring durability and strength. Crafted from cast iron, this block features a 4.600-inch bore and a 9.800-inch deck height, making it suitable for large displacement builds. Its 4-bolt main design ensures enhanced stability and support for the crankshaft, especially under demanding conditions. The two-piece rear seal adds to its robustness and ease of installation. This engine block is ideal for custom engine builds, race cars, and heavy-duty applications where maximum power and reliability are essential. Please note that this product is air-restricted and available for truck freight only, ensuring safe and compliant delivery for commercial and industrial use. The part's precise dimensions and engineering specifications make it a reliable choice for professional engine builders and automotive enthusiasts seeking a high-quality big block Chevy component. Whether upgrading an existing engine or building a new powertrain from scratch, this iron block provides a solid foundation for performance and longevity.

Features:

• Material: Cast iron for durability and strength

• Bore Size: 4.600 inches for high displacement potential

• Deck Height: 9.800 inches suitable for large engine builds

• Main Bearing Configuration: Four-bolt design for enhanced support

• Seal Type: Two-piece rear seal for improved sealing and ease of assembly

• Application: Compatible with high-performance and heavy-duty engines

• Restrictions: Air-restricted and available for truck freight only