BluePrint GM LS-Compatible Base Dressed Engine – 427 c.i. – 600 HP

600 HP · 530 lb-ft · 427 c.i. · 91+ Octane · Dyno Tested · 30-Month/50,000-Mile Warranty

Built for serious builders who need big-cubic-inch LS power in a ready-to-complete package, this BluePrint Engines GM LS Compatible 427 Crate Engine delivers 600 horsepower and 530 lb-ft of torque. The increased 427 cubic inch displacement provides strong low-end torque and broad power delivery for high-performance off-road, street, racing, and custom vehicle applications.

At the foundation is a high-strength LSX-style cast iron block featuring increased deck thickness, reinforced webbing, extended cylinder skirts, priority main oiling, and six-bolt mains. A forged rotating assembly combines a 4.125-inch stroke crankshaft, forged 6.125-inch connecting rods, and forged pistons for the durability required in high-load and high-horsepower builds.

BluePrint LS3-style aluminum cylinder heads and an aggressive hydraulic roller camshaft help the engine produce strong airflow and power throughout the RPM range. The base-dressed configuration includes a fabricated aluminum LS3 intake manifold, drive-by-wire throttle body, fuel rails, injectors, coil packs, water pump, retro-fit oil pan, and other essential engine components.

The ECU and wiring harness are not included, allowing builders to select an engine management package that matches their transmission, vehicle wiring, tuning requirements, and overall build.

Need to confirm fitment or get an exact delivered price? Call or text our team before ordering.

Includes:

• BluePrint GM LS Compatible 427 Base-Dressed Crate Engine
• High-Strength LSX-Style Cast Iron Block
• BluePrint LS3 Aluminum Cylinder Heads
• BluePrint Fabricated Aluminum LS3 Intake Manifold
• Fuel Rails
• Drive-by-Wire Throttle Body
• 42 lb/hr Fuel Injectors
• Hydraulic Roller Camshaft
• Forged Crankshaft
• Forged Connecting Rods
• Forged Pistons
• Retro-Fit Oil Pan
• Water Pump
• Harmonic Balancer
• Timing Cover
• Valve Covers
• Coil Packs
• Spark Plugs
• Spark Plug Wires

Note: This engine does NOT include an ECU or engine controller, engine wiring harness, drive-by-wire accelerator pedal, flexplate or flywheel, front accessory drive system, alternator, power steering pump, air-conditioning compressor, exhaust headers, air intake system, transmission controller, or transmission.