LS7 7.0L 427 C.I. 505 HP Crate Engine Package
$2,000.00
LS7 crate engine: GM 7.0L (427 C.I.) V8 delivering 505 HP and 470 lb-ft of torque. This turnkey package includes a calibrated ECU, standalone wiring harness, and 1-year warranty.
LS7 crate engine built for classic muscle cars, restomods, pro-touring builds, track cars, and serious performance projects. This genuine GM LS7 7.0L V8 delivers 505 horsepower at 6,300 RPM and 470 lb-ft of torque at 4,800 RPM on standard pump gas.
With 427 cubic inches of displacement, the LS7 is known for high-RPM performance, strong throttle response, and naturally aspirated power. It uses a lightweight aluminum block, forged steel crankshaft, titanium connecting rods, and CNC-ported aluminum cylinder heads.
The package also includes a pre-calibrated ECU and standalone wiring harness. These components provide a practical starting point for integrating the engine into a compatible custom chassis or classic vehicle. A 1-year warranty is included.
LS7 7.0L 427 Crate Engine Specifications
- Engine: GM LS7 7.0L 427 C.I. V8
- Horsepower: 505 HP @ 6,300 RPM
- Torque: 470 lb-ft @ 4,800 RPM
- Displacement: 7.0L / 427 cubic inches
- Bore: 4.125 inches
- Stroke: 4.000 inches
- Engine Architecture: Gen IV small-block V8
- Block: Lightweight aluminum
- Crankshaft: Forged steel
- Connecting Rods: Titanium
- Cylinder Heads: CNC-ported aluminum
- ECU: Pre-calibrated ECU included
- Wiring: Standalone wiring harness included
- Warranty: 1-year warranty
505 HP LS7 Performance
The LS7 505 HP crate engine was developed around naturally aspirated performance. Its 7.0L displacement gives it a substantial advantage over smaller LS engines when high-RPM power and throttle response are priorities.
The LS7’s combination of aluminum construction, titanium components, and high-flow cylinder heads makes it a popular choice for performance-focused builds. It works particularly well when the goal is strong naturally aspirated V8 power without adding a supercharger or turbocharger.
LS7 427 Crate Engine for Custom Builds
The LS7 427 crate engine is suited to classic muscle cars, restomods, pro-touring cars, track builds, and other compatible performance applications.
The engine is only one part of a successful swap. Before ordering, confirm engine mounts, transmission compatibility, fuel delivery, cooling, exhaust clearance, accessory configuration, wiring, and ECU requirements for your vehicle.
ECU and Standalone Wiring Harness Included
This 7.0L LS7 crate engine package includes a pre-calibrated ECU and standalone wiring harness. Having the engine-management components included can provide a more straightforward starting point for a compatible custom installation.
Always verify the electronics and supporting components required for your specific vehicle before purchase.
1-Year Warranty Included
The package includes a 1-year warranty. Review the applicable warranty and installation requirements before purchase.
If you’re comparing an LS7 engine for sale, a 7.0L 427 engine for sale, or an LS7 crate motor for your next project, this GM LS7 combines 427 cubic inches, 505 HP, naturally aspirated performance, and the components needed to support a compatible engine swap.
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