Chevrolet Performance LS427/570 Crate Engine
The LS427/570 is an upgraded LS7-based 7.0L V8 developed by Chevrolet Performance for high-performance and competition applications. It combines LS7 architecture with a higher-lift hydraulic roller camshaft and a wet-sump oiling system.
The engine produces 570 HP at 6,200 RPM and 540 lb-ft of torque at 4,800 RPM. The wet-sump design eliminates the separate oil tank and external oil lines required by the production-based dry-sump LS7 configuration.
Key Specifications
- Engine: Chevrolet Performance LS427/570
- Displacement: 7.0L / 427 cu. in.
- Configuration: Naturally aspirated V8
- Horsepower: 570 HP @ 6,200 RPM
- Torque: 540 lb-ft @ 4,800 RPM
- Bore: 4.125″
- Stroke: 4.000″
- Compression: 11.0:1
- Block: Cast aluminum
- Main Caps: 6-bolt, cross-bolted
- Crankshaft: Forged steel
- Connecting Rods: Forged titanium
- Camshaft: High-lift hydraulic roller
- Valve Lift: .591″ intake / .590″ exhaust
- Cylinder Heads: CNC-ported LS7-style
- Oiling: Wet sump
- Maximum Recommended RPM: 7,000
- Fuel: Premium gasoline
Engine Features
The LS427/570 includes performance-focused components such as CNC-ported cylinder heads, titanium intake valves, high-rate valve springs, LS7-style intake components and a dedicated high-performance camshaft. Chevrolet Performance also specifies an F-body wet-sump oil pan and wet-sump oil pump.
Common Applications
- Chevrolet Corvette C6 Z06-based builds
- Chevrolet Camaro Z/28-based builds
- Restomod vehicles
- High-performance muscle cars
- Track and competition vehicles
- Custom LS engine swaps
- Street/strip performance projects
Important: Chevrolet Performance identifies this engine as intended for competition use, so customers should verify applicable emissions and registration requirements before installing it in a street-driven vehicle.
Installation Requirements
The engine may require:
- LS427/570 engine controller
- Wiring harness
- Compatible transmission
- Engine mounts
- Fuel system
- Cooling system
- Exhaust/header system
- Flywheel or flexplate appropriate to the transmission
- Additional accessory components
Chevrolet Performance specifies the LS427 Engine Controller P/N 19420000 for this engine, sold separately. The engine is also shipped with exhaust manifolds and with a flexplate/flywheel installed.

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