GMC SIERRA 6.2L L87 ENGINE/TRANSMISSION

If you’re in the market for a powerful, reliable, and high-performance engine and transmission setup for your GMC SIERRA 6.2L L87 ENGINE/TRANSMISSION combined with its matching transmission is one of the best options available. Known for its robust output, solid engineering, and versatility, this package can transform your truck into a beast capable of handling heavy-duty work, towing, and daily driving with ease.

Overview of the GMC SIERRA 6.2L L87 ENGINE/TRANSMISSION

The GMC SIERRA 6.2L L87 ENGINE/TRANSMISSION is a powerhouse V8 engine developed by General Motors, known for its solid performance and reliability. It’s part of the Generation IV small-block engine family and features advanced technologies that help balance power, efficiency, and durability.

Key Specifications:

• Displacement: 6.2 liters (376 cubic inches)

• Configuration: V8

• Fuel System: Sequential multi-port fuel injection

• Horsepower: Approximately 403 hp @ 5600 rpm

• Torque: Around 417 lb-ft @ 4300 rpm

• Compression Ratio: 11.0:1

• Block Material: Cast iron (durable for heavy-duty use)

• Cylinder Heads: Aluminum, optimized for airflow and performance

• Valvetrain: Overhead valve (OHV) with hydraulic roller camshaft

The GMC SIERRA 6.2L L87 ENGINE/TRANSMISSION is designed with a cast iron block for strength and durability, which is ideal for truck owners who demand longevity and the ability to endure tough conditions. The aluminum cylinder heads and high-flow intake system ensure the engine breathes efficiently, maximizing both power output and fuel economy.

Performance and Reliability

The GMC SIERRA 6.2L L87 ENGINE/TRANSMISSION offers a perfect balance of power and torque, making it ideal for both work and play. Whether you’re hauling heavy trailers, towing boats, or driving off-road, this engine delivers a smooth and responsive driving experience. It also features an advanced cooling system to manage temperatures during heavy use, helping to prevent overheating and maintain performance integrity.

The hydraulic roller camshaft reduces internal friction, which translates into smoother operation and less wear over time. This means lower maintenance costs and better longevity compared to older engine designs.

Applications

This engine was commonly installed in GMC Sierra and Chevrolet Silverado models from 2007 to 2014, specifically in higher trim levels and performance packages. It’s a popular choice for those upgrading their truck’s engine or seeking a replacement for a worn-out unit.

Transmission Details

The GMC SIERRA 6.2L L87 ENGINE/TRANSMISSION is typically paired with the 6L80 or 6L90 automatic transmission, depending on the exact vehicle model and year. These transmissions are renowned for their smooth shifting, durability, and ability to handle the high torque output of the GMC SIERRA 6.2L L87 ENGINE/TRANSMISSION.

Key Features of the Transmission:

• Type: 6-speed automatic overdrive transmission

• Gear Ratios: Optimized for both fuel efficiency and performance

• Torque Capacity: Designed to handle up to 440 lb-ft of torque or more, matching the engine’s power

• Shift Logic: Electronically controlled with adaptive shift strategies

• Durability: Built for heavy-duty applications including towing and off-roading

The electronically controlled transmission adapts to your driving style, whether you’re cruising on the highway or towing a heavy trailer. It provides crisp shifts and keeps the engine in its optimal power band, enhancing both performance and fuel economy.

Why Buy This Engine and Transmission Package?

1. Power and Performance

The GMC SIERRA 6.2L L87 ENGINE/TRANSMISSION offers one of the highest outputs available for a naturally aspirated V8 in its class, making it ideal for truck enthusiasts who need serious muscle under the hood. When combined with its matched transmission, you get a drivetrain that can handle intense workloads without compromise.

2. Reliability and Durability

Both the engine and transmission are factory-built to withstand the rigors of heavy use. The cast iron block of the GMC SIERRA 6.2L L87 ENGINE/TRANSMISSION is particularly resistant to warping and cracking under stress, while the transmission’s robust design supports repeated heavy loads and long-distance towing.

3. Compatibility and Ease of Installation

If you have a GMC Sierra or similar GM truck model, this engine and transmission combo is a direct fit with minimal modifications required. This saves time and money during installation, and ensures your vehicle maintains factory-level reliability.

4. Fuel Efficiency for Its Class

Despite its power, the GMC SIERRA 6.2L L87 ENGINE/TRANSMISSION incorporates modern fuel injection and combustion technologies to optimize fuel use, making it more efficient than older big-block engines. This is especially important for daily drivers who want power without excessive fuel costs.

5. Proven Performance in the Field

The GMC SIERRA 6.2L L87 ENGINE/TRANSMISSION has been tested and proven in real-world conditions for years, with millions of miles driven in trucks across North America. Its reputation for consistent performance and long service life makes it a smart choice for anyone seeking a dependable engine.

Typical Uses and Ideal Buyers

This engine/transmission package is ideal for:

• Truck owners needing an upgrade for more power or improved reliability

• Fleet operators who want a dependable powertrain for work trucks

• Off-road enthusiasts requiring a strong, reliable setup that can handle rough terrain

• Towing and hauling professionals who demand high torque and durability

• Restoration projects where matching original factory specs is important

What’s Included in the Sale?

• Complete GMC SIERRA 6.2L L87 ENGINE/TRANSMISSION (tested and inspected)

• Matched automatic transmission (6L80/6L90 depending on availability)

• Engine wiring harness and sensors

• Torque converter (if transmission is included)

• Engine mounts (depending on sale terms)

• Installation hardware (bolts, brackets as required)

• Comprehensive testing report or dyno sheet (if available)

We ensure all components are fully tested for leaks, compression, and electrical continuity before sale to guarantee you receive a ready-to-install unit.

Installation and Maintenance Tips

To maximize the life and performance of your GMC SIERRA 6.2L L87 ENGINE/TRANSMISSION, consider the following:

• Use high-quality synthetic engine oil and transmission fluid

• Follow recommended maintenance intervals for oil changes and fluid checks

• Ensure the cooling system is in good condition and functioning properly

• Use OEM or equivalent quality parts for replacement components

• Regularly check for any leaks, unusual noises, or performance changes

Professional installation is recommended unless you have significant mechanical experience, as proper setup of the engine wiring, fuel system, and transmission controls is essential for optimal operation.

Pricing and Availability

Pricing depends on the condition, mileage, and additional components included. Typically, a complete GMC SIERRA 6.2L L87 ENGINE/TRANSMISSION package can range from $4,000 to $7,500, with lower mileage or fully rebuilt units at the higher end.

We provide competitive pricing and are happy to answer any questions regarding the specifics of the engine’s history, performance testing, or compatibility with your vehicle.

Why Buy From Us?

• We thoroughly inspect every engine and transmission before sale

• Transparent condition reports and history disclosures

• Experienced support team ready to help with fitment and installation questions

• Fast shipping options and secure packaging to prevent damage

• Customer satisfaction guarantee with return policies on eligible products

Final Thoughts

The GMC SIERRA 6.2L L87 ENGINE/TRANSMISSION paired with its matching transmission represents an exceptional opportunity to upgrade or replace your truck’s powertrain with a proven, reliable, and high-performance solution. Whether you need raw power for towing, dependability for heavy work, or smooth performance for everyday driving, this engine and transmission package offers everything you need.