LS364/450HP Gen III 6.0L 24X Long Block

Proven 6.0L LS Performance for Street, Strip, and Custom Builds

The LS364/450HP Gen III 6.0L 24X Long Block is a high-performance crate engine designed to deliver dependable power, durability, and versatility for a wide range of performance applications. Producing 450 horsepower, this Gen III LS engine is an excellent choice for muscle cars, hot rods, street rods, classic trucks, and custom LS swap projects.

Built on Chevrolet Performance’s proven 6.0L LS platform, the LS364/450HP combines a robust engine block with high-flow aluminum cylinder heads and a performance hydraulic roller camshaft to provide impressive horsepower, strong mid-range torque, and smooth everyday drivability. Its 24X crankshaft reluctor wheel makes it especially popular for builders using earlier LS engine management systems.

Engineered for Reliable Performance

Designed to perform on both the street and the track, the LS364/450HP Long Block delivers responsive acceleration and a broad power band while maintaining the durability expected from a Chevrolet Performance engine. The long block configuration allows builders to customize the intake system, fuel delivery, accessories, and engine management to meet the specific requirements of their vehicle.

Whether you’re replacing an older LS engine or building a custom project from scratch, this engine offers an outstanding balance of performance, reliability, and installation flexibility.

Key Features

• 6.0L (364CI) Gen III LS long block
• Produces 450 horsepower
• 24X crankshaft reluctor wheel
• High-flow aluminum cylinder heads
• Performance hydraulic roller camshaft
• Durable performance rotating assembly
• Naturally aspirated for smooth and responsive power delivery
• Compatible with many early LS electronic control systems
• Ideal for muscle cars, hot rods, classic trucks, restomods, and custom LS swaps
• Professionally assembled for dependable long-term performance

Ideal Applications

The LS364/450HP Long Block is an excellent choice for:

• Classic muscle cars
• Street rods and hot rods
• Restomod projects
• Custom trucks
• LS engine swap conversions
• Performance street and weekend track vehicles

Why Choose the LS364/450HP Gen III Long Block?

• 450 horsepower with proven LS reliability
• Gen III 6.0L platform with 24X compatibility
• Excellent balance of power, durability, and drivability
• Flexible long block design for custom engine builds
• Strong aftermarket support and upgrade potential
• Ideal for both replacement engines and complete performance builds

Upgrade your project with the LS364/450HP Gen III 6.0L 24X Long Block and enjoy the legendary reliability, performance, and versatility that have made the LS engine family a favorite among performance enthusiasts worldwide.