Chevy 5.3L V8 Engine 1999-2007

• Enhanced Cylinder Head Durability: 100% pressure testing ensures no cracks or sealing issues, preventing coolant leaks.
• Optimized Piston Design: Updated piston sizes with PTFE coating and hypereutectic material reduce oil consumption and prevent piston slap.
• Advanced Valve Technology: CNC-cut valve seats and chromed valves improve sealing, reduce wear, and enhance durability.
• Improved Oil Management: Latest-design Active Fuel Management (AFM) and updated oil pressure relief valves optimize oiling operation and pressure stability.
• Comprehensive Quality Control: Continuous monitoring through a Manufacturing Execution System, along with lifter bore inspections and crankcase leak testing, ensures peak reliability.

The Chevy 5.3L V8 LM7 engine (1999-2007) is a proven workhorse, delivering durability, power, and efficiency for Chevy Silverado 1500, GMC Sierra 1500, Tahoe, Suburban, Yukon, and Avalanche. Built with a cast iron block for strength, this Vortec 5300 engine produces 270-295 horsepower and up to 335 lb-ft of torque, making it ideal for towing, hauling, and daily driving. With Sequential Fuel Injection and Electronic Throttle Control, the LM7 ensures smooth performance and reliability. Whether you need a replacement 5.3L engine or a remanufactured LM7, upgrade today for OEM-quality power and longevity!

WARRANTY

Parts

• 36-Months

Labor

• 36-Months