Dart 31837221 LS Next Iron Gen III Engine Block

The Dart LS Next Iron Gen III engine block is a high-performance aftermarket replacement designed for serious LS engine builds. Constructed from premium cast iron, this block provides exceptional strength and durability for high-horsepower applications while maintaining excellent thermal stability.

Key Features:

• Cast iron construction for superior strength and heat dissipation
• Gen III LS platform compatibility for wide range of LS engine builds
• Enhanced bulkhead and main cap design for increased rigidity
• Priority main oiling system for improved lubrication
• Accepts standard LS components including crankshafts, rods, and pistons
• Siamesed cylinder bores for maximum strength under boost
• Suitable for naturally aspirated, supercharged, and turbocharged applications

This block is ideal for racers and performance enthusiasts building engines capable of handling 1,500+ horsepower. The LS Next block retains the proven Gen III LS architecture while incorporating reinforcements in critical stress areas, making it an excellent foundation for extreme performance builds.