The GM LS1 5.7L V8 is the engine that launched the modern LS era — a revolutionary redesign of the small-block V8 that produced more power from less displacement with dramatically improved reliability and a lighter weight than anything GM had built before. This used GM LS1 engine is a genuine OEM unit sourced from low-mileage C5 Corvette, Camaro SS, Firebird WS6, and GTO donor vehicles and inspected before shipment. For the platform that started the LS revolution, only the real LS1 will do.
Features
Tested Engine with Warranty
Hassle-Free Returns Available
Live Customer Support
Direct Fit for Your Vehicle
The LS1 engine from General Motors, celebrated for its combination of power, reliability, and lightweight design. Featuring an all-aluminum block and high-flow cylinder heads, it produces 305–350 horsepower and 335–365 lb-ft of torque, making it ideal for performance builds and everyday driving alike. Compact and versatile, the LS1 fits a wide range of vehicles, from classic muscle cars to swaps, and offers excellent support for modifications. Its proven durability and strong performance have made it outstand in the LS engine family, perfect for anyone seeking a powerful and reliable engine.
LS1 fitment requires matching your specific application. The C5 Corvette LS1 uses a dry-sump oil system and dry-sump-specific oil pan that differs from the Camaro/Firebird application’s wet-sump oil pan. The GTO application has different accessory configurations. Our application review process confirms the correct LS1 variant for your specific vehicle or build before it ships.
For LS1-powered vehicle restorations and replacements, the comparison between a used engine, a remanufactured engine, and an OEM engine involves real authenticity considerations. A used GM LS1 engine from a verified low-mileage donor gives you the factory aluminum V8 assembly as an OEM engine — the original coil-on-plug ignition layout, the factory composite intake manifold, the factory aluminum block casting — as a used OEM engine that preserves what makes an LS1 an LS1. No remanufactured engine alternative replicates the factory LS1 identity in an original assembly.
Every used GM LS1 engine ships with up to a 90-day warranty and arrives within 2 to 5 business days. Installation is not included. We recommend a qualified LS specialist for this application. These are genuine GM OEM engines, and we stand behind every unit.
Specifications
Product Type
Engine
Displacement (Engine Size)
5.7L V8 (5665 cc)
Fuel Type
Gasoline
Availability
In Stock
Shipping
Nationwide Available
Use Case
Ideal for upgrades or replacements
Frequently Asked Questions
How much HP is an LS1?
The LS1 produces up to 305 to 350 hp depending on the trim level and model type.
What is the life expectancy of a LS1 engine?
The LS1 can last 250,000 to 300,000 miles with proper care and maintenance.
What are common problems with LS1 engines?
Common LS1 engine problems might include oil consumption, leaky rear main seals, and lifter or valvetrain noise.
What does LS stand for in LS1?
In LS1, “LS” stands for “Luxury Sport,” the name Chevrolet used for this engine family. It represents GM’s line of high-performance small-block V8 engines.
What does an LS1 engine weigh?
An LS1 engine weighs about 430 to 450 pounds fully dressed (with accessories), making it relatively lightweight for a V8.
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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, 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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