ATK Marine DM29 Chevy 4.3L V6 Rebuilt Long Block Engine

ATK Marine DM29 4.3L V6 Rebuilt Long Block

ATK Marine DM29 Chevy 4.3L V6 Rebuilt Long Block Engine units provide a reliable high-torque marine powertrain solution specifically engineered for mid-size inboard and sterndrive applications. This 4.3L 262ci Chevy V6 features cast-iron cylinder heads and a seasoned cast-iron block, designed to maintain mechanical stability and power efficiency in a marine footprint. Built with a hydraulic roller camshaft and a precision internal/external balance, this remanufactured unit is a direct performance fit for marine enthusiasts requiring a durable replacement V6 foundation.

As a Stage 1 remanufactured marine foundation, the ATK DM29 arrives in an un-dressed state to allow for full build customization with marine-grade induction and ignition systems. While this long block includes the cylinder heads, builders must provide their own marine oil pan and timing cover to complete the assembly. Backed by a professional 1-Year limited warranty, this unit features a modern one-piece rear main seal and is built on a seasoned block casting to ensure the structural integrity required for sustained operation in aquatic environments.

Key Features of ATK Marine DM29

• 4.3L 262ci displacement optimized for reliable V6 marine power.
• Cast iron cylinder heads and block for traditional structural durability.
• Hydraulic roller camshaft ensures consistent and quiet valvetrain operation.
• Internal and external engine balance for smooth power delivery.
• Modern one-piece rear main seal prevents common fluid weeping.
• Seasoned block casting provides long-term structural integrity.
• Standard 1-Year professional limited warranty included.

DM29 Include:

• Cylinder Heads