ATK North America Engine Block (MPN: 13G2)

High-performance cast iron engine block for Chevrolet LM7 applications.

The ATK North America Engine Block is designed specifically for automotive applications, particularly for the Chevrolet LM7. Constructed from durable cast iron, this engine block ensures maximum performance and long-term reliability. The reverse engineering process eliminates any original factory defects, providing a high-quality product that meets rigorous standards.

This engine block features OEM journals and is equipped with iron main caps, ensuring structural integrity and performance. With a bore of 3.903 inches and a stroke of 4.000 inches, it is engineered to deliver optimal engine performance. The inclusion of a 1-piece rear main seal enhances the sealing capability, reducing the risk of leaks and improving overall efficiency.

ATK North America has a long-standing reputation for quality and customer service, backed by decades of experience in remanufacturing. This engine block not only saves time and money but also keeps your vehicle on the road, minimizing downtime and maintenance costs.

Features

• Constructed From Cast Iron
• Provides Maximum Performance And Long-Term Durability
• Reverse Engineered To Ensure That Any Original Factory Defects Are Removed
• Saves Time And Money And Keeping Your Car Or Light Truck On The Road And Out Of The Shop

Specifications

• Manufacturer: ATK Reman Eng.
• Manufacturer Part Number: 13G2
• Recommended Use: Automotive
• Block Type: Chevrolet LM7
• Displacement: Not Applicable
• Finished Cylinder Bores: Yes
• Color: Black
• Material: Cast Iron
• Journal Type: OEM
• Cylinder Bore (IN): 3.903 Inch
• Cylinder Deck Height (IN): Not Applicable
• Max Stroke: 4 Inch
• Main Bolt Style: 6 Bolt
• Main Cap Material: Iron
• Weight (LB): 180 Pound
• Rear Main Seal Style: 1 Piece
• Includes Freeze Plugs: Yes
• Includes Cam Bearings: Yes
• Includes Main Cap Fasteners: Yes

Technical Documents

• ATK_Warranty.pdf