ATK High Performance Engines DM32 Remanufactured Chevrolet 454 7.4L Marine Engine

The ATK High Performance Engines DM32 is a professionally remanufactured marine engine based on the legendary Chevrolet 454 cubic inch (7.4L) big block platform. Designed specifically for marine applications from 1973 to 1990 Chevrolet installations, this engine delivers reliable 330 horsepower performance for boats requiring reverse rotation configurations.

Engine Specifications:

• Displacement: 7.4L / 454 cubic inches
• Power Output: 330 horsepower
• Rotation: Reverse rotation (marine specific)
• Block Type: Cast iron block construction
• Cylinder Heads: Cast iron heads with round intake ports
• Balancing: Externally balanced configuration
• Rear Main Seal: 2-piece rear seal design
• Main Caps: 10-bolt main cap configuration

Key Features:

• Complete remanufactured marine engine ready for installation
• Reverse rotation design for V-drive and inboard marine applications
• Round intake port cylinder heads for optimal airflow
• Durable cast iron block and heads for marine environment durability
• Externally balanced for reduced internal stress and improved longevity
• Compatible with 1973-1990 Chevrolet marine installations

This remanufactured marine engine provides a cost-effective alternative to new engine purchases while delivering the proven reliability and performance of the Chevrolet 454 big block platform. ATK's remanufacturing process ensures each engine meets strict quality standards for marine duty.