ATK High Performance Engines DMX1 Chevy 4.3L Marine Crate Engine 262ci V6

The ATK High Performance Engines DMX1 is a complete marine crate engine designed for 2007-2010 Chevrolet 4.3L applications. This 262 cubic inch V6 marine engine delivers 230 horsepower and is engineered specifically for marine environments with corrosion-resistant components and marine-grade sealing.

Key Specifications:

• Displacement: 4.3L (262 cubic inches)
• Power Output: 230 horsepower
• Configuration: V6 with cast iron block and cylinder heads
• Rotation: Standard (clockwise)
• Camshaft: Hydraulic roller cam with balance shaft for smooth operation
• Valvetrain: M8 bolt provision for roller rockers
• Sensors: Dual knock sensors on both sides for optimal engine management

Marine-Grade Features:

• Marine-specific gaskets and seals for saltwater resistance
• Corrosion-resistant hardware and coatings
• Designed for inboard and sterndrive applications
• Factory-balanced rotating assembly for vibration-free operation

This complete long block provides a reliable replacement solution for worn or damaged marine engines. The balance shaft design ensures smooth operation at all RPM ranges, while the roller camshaft provides improved durability and performance over flat-tappet designs. ATK engines are dyno-tested and backed by a comprehensive warranty.