The used LT7 engine is a 5.5L twin-turbo V8 built for top performance and high horsepower. Designed for Chevrolet’s leading performance cars, the LT7 offers quick acceleration and strong power while meeting factory durability standards. Every used LT7 engine is inspected and tested before shipping, giving you a reliable, high-performance replacement at a lower price than a new engine.Used in the Cadillac CT6-V Blackwing, it features direct injection and twin-turbocharging for smooth yet forceful acceleration. This hand-built Blackwing V8 offers advanced engineering ideal for premium luxury and performance upgrade projects.
Features
Tested Engine with Warranty
Hassle-Free Returns Available
Live Customer Support
Direct Fit for Your Vehicle
The GM 5.5L Twin-Turbo V8 LT7 engine for sale delivers high-end performance with its advanced twin-turbo system and hand-built Blackwing design. Producing up to 550 horsepower, it powers the Cadillac CT6-V with refined torque delivery and impressive responsiveness. With strong internals and modern thermal efficiency, the LT7 engine appeals to enthusiasts looking for an exclusive, luxury-grade performance upgrade. Customers also browse other used performance engines in our inventory for alternative swap possibilities, including LS-based options. Due to limited production, this engine remains rare and collectible among high-performance builds.
A used LT7 engine is an excellent solution for owners replacing a damaged or high-mileage twin-turbo V8 while preserving factory supercar-level performance. Engineered with advanced forced induction, precision fuel delivery, and performance-focused internal components, the LT7 provides exceptional power output and rapid throttle response. Many buyers choose a used LT7 replacement engine to maintain original specifications, without the downtime and cost of a full performance rebuild.
This engine is made for vehicles that came with the LT7 5.5L twin-turbo V8. Since fit can depend on your VIN, model year, and calibration, we check compatibility before shipping to make sure you get the right engine. If you’re looking for an LT7 replacement or a high-performance OEM V8, check our catalog to find a tested engines that fits your car.
Choosing a used LT7 engine can save you a lot on repairs while keeping your car’s original power and performance. Each engine is checked before shipping and comes with up to a 90-day warranty for peace of mind. Installation isn’t included, but we can help you find a qualified installer if needed. We deliver nationwide in 2 to 5 business days to help you get back on the road quickly. For official specs and technical details, please see Chevrolet’s website.
Specifications
Product Type
Engine
Displacement (Engine Size)
5.5L Supercharged V8
Fuel Type
Gasoline
Availability
In Stock
Shipping
Nationwide Available
Use Case
Ideal for performance builds, swaps, and replacements
Frequently Asked Questions
What vehicles use the LT7 engine?
The LT7 is associated with Corvette high-performance models, particularly the next-gen ZR1 program.
How powerful is the LT7 engine?
The LT7 is expected to deliver extreme twin-turbo V8 performance, surpassing the LT6’s output, depending on configuration and model year.
Is the LT7 good for performance or swap builds?
Absolutely. Its dual turbochargers, high-rev capability, and advanced fuel system make it ideal for high-end custom builds.
Do your LT7 engines come tested?
Yes. Units undergo compression test, leak-down test, turbo inspection, and oil pressure check.
What mileage range do LT7 engines usually have?
 Most inventory ranges between 10K–50K miles, as these engines are usually from newer model performance vehicles.
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Shipping Policy
Our shipping policy is flexible, as the shipping charges depend on the location. A few certain remote regions like CO, UT, NY, OR, & CA may have additional shipping charges or delivery fees. However, some circumstances may cause delays, Â but we always strive to deliver your order as quickly as possible.
Please note that all shipping times are estimates and not guaranteed. We examine all rebuilt and used engines before shipment and aim to provide high-quality used engines and transmissions. Shipping details and fees will be disclosed to consumers before any transactions are made. Our team is operational 24/7, and you can call us at +1-888-799-0188 to place an order.
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