LS7 427ci V8 Engine – 660 HP

LS7 660 HP Engine for Sale

This LS7 660 HP engine is a built 427 cubic inch 7.0L V8 based on the Corvette Z06 engine, upgraded beyond its 505 horsepower factory rating.

LS7 427ci V8 Engine – 660 HP
Built around the legendary
427ci (7.0L) LS architecture
, this high-performance V8 is an excellent choice for enthusiasts looking for substantial naturally aspirated power. With an advertised output of approximately
660 HP
, it provides a strong foundation for street performance, track builds, muscle cars, restomods, and custom LS swaps.
Compatible Chevrolet Applications
Chevrolet Corvette C6
Chevrolet Camaro
Chevrolet Camaro SS
Chevrolet Chevelle
Chevrolet Nova
Chevrolet El Camino
Chevrolet Impala
Chevrolet Monte Carlo
Chevrolet C10 / C20 / C30
Chevrolet C/K Series
Chevrolet Silverado custom builds
Chevrolet S10 performance builds
Compatible Pontiac & GM Applications
Pontiac Firebird
Pontiac Formula
Pontiac Trans Am
Pontiac GTO
Cadillac performance builds
Holden-based GM projects
Other GM vehicles using LS-based swap configurations
Popular Custom & Swap Applications
Classic muscle cars
C10 and square-body trucks
Camaro and Corvette builds
Street rods and hot rods
Restomod projects
Pro-touring cars
Track and racing builds
High-performance LS swaps
Custom performance trucks
Engine Highlights
427ci / 7.0L V8
Approximately
660 HP
High-performance LS architecture
Naturally aspirated performance configuration
Strong power and torque potential
Excellent aftermarket and swap support
Ideal for serious street and track applications

About the LS7 660 HP Engine

The LS7 was built for the C6 Corvette Z06 with titanium rods, CNC-ported heads and a dry-sump oil system. With a more aggressive camshaft, upgraded valvetrain and supporting modifications, it can produce around 660 horsepower naturally aspirated. That makes the LS7 660 HP engine one of the most powerful naturally aspirated LS builds you can drop into a car.

It suits Corvettes, pro-touring Camaros and high-end restomods where owners want an emotional, high-revving V8 without the complexity of forced induction.

Before You Buy

• Request the build sheet, including cam specifications and valvetrain parts.
• Confirm whether the engine is set up for dry-sump or wet-sump oiling.
• Plan an exhaust and fuel system for the power level.

Installation Tips

Follow the correct oil fill procedure, prime the oil system and verify the tune with a wideband sensor. Inspect the valvetrain after the first few runs.

Who It Suits

Experienced builders who want a big-displacement, naturally aspirated LS with real character will appreciate this engine. Its sound and throttle response are hard to match.

FAQ

Is the LS7 660 HP engine street drivable? It can be, depending on the cam and tune. Contact us for details.

Buying Your LS7 660 HP Engine from Auto Parts Export

Auto Parts Export is a Canadian supplier of used engines, transmissions and OEM replacement parts. Browse more Used Engines, or use our part finder if you need something specific. We ship across Canada and overseas, so read about shipping and international shipping, and review our warranty and returns policy before you order. For official model and specification information, visit the Chevrolet Performance website.

How Ordering Works

Send us your VIN, engine code or part number and our team will check that the LS7 660 HP Engine matches your vehicle. We can share additional photos and any details we have on the unit, then provide a written quote that includes freight to your address, terminal or port. Large items such as engines and transmissions normally travel by freight on a pallet or in a crate, and we will explain the packaging, carrier and timing before you pay so there are no surprises when your order arrives.

Ready to order the LS7 660 HP Engine? Contact Auto Parts Export for pricing, extra photos and a shipping quote.

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