All American Motors Hub

GM LT6 Engine

Price range: $20,000.00 through $30,000.00

The prices are exclusive of taxes and shipping. The price may vary depending upon the miles and year of manufacturing.

In Stock

Additional Information

Brand

General Motors

Conditions

Remanufactured, Used

Miles

70000-130000

Year Compatibility

2023-2025

Verified

Tried & Tested

Warranty

Up to 3 Months

The used GM LT6 engine is a 5.5L naturally aspirated V8 performance engine designed for high-revving power, advanced engineering, and track-ready performance. Known for its flat-plane crankshaft design and impressive horsepower output, the LT6 engine is one of the most advanced V8 engines developed by General Motors. If you are searching for a GM LT6 engine for sale, each used OEM unit is inspected and tested before shipping, providing a reliable replacement solution.

Features

The GM LT6 engine is a 5.5-liter naturally aspirated V8 engineered for high-performance applications. Built with advanced lightweight components and a flat-plane crankshaft design, the LT6 delivers exceptional horsepower and rapid throttle response. Buyers searching for an LT6 engine often need a dependable replacement motor that restores factory-level performance without the expense of sourcing a brand-new performance engine.

This used LT6 engine fits vehicles originally equipped with the 5.5L LT6 V8 configuration. Because compatibility can vary by VIN, drivetrain setup, and vehicle model, fitment is verified before shipment to ensure the correct engine assembly is matched to your vehicle. If your car was factory-equipped with the GM LT6 engine, this replacement unit is designed to restore original performance and drivability when professionally installed.

Choosing a used GM LT6 engine for sale can be a practical option compared to rebuilding or purchasing a new high-performance engine. Each engine is inspected and evaluated prior to shipping to confirm operational reliability and mechanical integrity. If you are actively searching for a Chevrolet performance replacement engine or a dependable modern V8 assembly, you can explore our used engine inventory to secure a tested OEM unit ready for installation.

Every engine includes up to 90 days of warranty coverage for added peace of mind. Orders ship nationwide within 2–5 business days, helping minimize vehicle downtime. Installation services are not included, though assistance locating a qualified installer can be arranged if needed. For official technical specifications and manufacturer references, buyers may consult the information provided by General Motors on its official website.

Specification

Product TypeEngine
Displacement (Engine Size)5.5L Naturally Aspirated V8
Fuel TypeGasoline
AvailabilityIn Stock
ShippingNationwide Available
Use CaseIdeal for performance builds, swaps, and replacements

Frequently Asked Questions

  1. How much is the LT6 engine horsepower rating from the factory?

    The LT6 horsepower delivers 670 hp at 8,400 rpm and 460 lb-ft torque at 6,300 rpm. This naturally-aspirated GM LT6 represents the highest specific output of any production V8, with available LT6 for sale units maintaining factory specifications.

  2. What are the complete LT6 engine specs for performance applications? 

    The LT6 specs include: 5.5L (335 ci) displacement, flat-plane crankshaft, 12.5:1 compression ratio, dual overhead cams, 8,600 rpm redline, dry-sump lubrication, and titanium components.

  3. Is the LT6 crate engine suitable for engine swaps and custom builds?

    Yes. The LT6 crate engine is available through GM Performance Parts with complete harness and ECU for custom applications. 

  4. What vehicles use the GM LT6 engine for sale in the performance market?

    Exclusively powers Chevrolet Corvette Z06 (C8 generation, 2023–present). This hand-assembled naturally-aspirated V8 is also available as an LT6 crate engine for custom builds and restoration projects requiring ultimate performance.

  5. How does the LT6 weight compare to other high-performance V8s?

     At 530 pounds, the LT6 weight is remarkably light for a 5.5L flat-plane V8. This exceptional power-to-weight ratio (1.26 hp per pound) surpasses most naturally-aspirated competitors, contributing to the Z06’s track performance and handling balance.

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Shiping Policy

Transparent, nationwide delivery — fast and secure.

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,  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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