PONTIAC 6L829066-NP Engine Motor Manual Trans 6.0L T56 6-SPEED 81K

( Manufacturer Part Number: 6L829066-NP ), ( Series: Ls ), ( Type: Engine ), ( Manufacturer Warranty: No Warranty ), ( Block Type: Lsx ), ( Number Of Valves: 16 ), ( Engine Size: 6.0l ), ( Fuel Type: Gasoline )

Review PONTIAC Factory Oem #6l829066-np 6.0l Engine Motor T56 6-speed Manual Trans 81k Miles fits LS2 GTO 2006

The 6L829066-NP engine is a powerhouse unit, specifically designed for the 2006 Pontiac GTO. This engine is part of the LS2 series, which boasts a displacement of 6.0 liters, or 364 cubic inches. The LS2 engine is known for its high-performance capabilities, delivering an impressive output of 400 horsepower at 5200 rpm and 415 lb-ft of torque at 4100 rpm.

This engine is engineered with a traditional small-block design, featuring an aluminum block and cylinder heads. The cylinder heads are equipped with large, rectangular intake ports and high-performance, hydraulic roller camshafts. The intake manifold is a multi-port design, which ensures efficient fuel delivery for optimal combustion.

The engine is mated to an impressive T56 6-speed manual transmission. This transmission is renowned for its durability and smooth shifting action. The T56 features a heavy-duty, double-cone synchronizers, helical gear sets, and a robust, one-piece input shaft. The result is a transmission that can handle high horsepower and torque levels, making it an ideal match for the high-performance LS2 engine.

The engine and transmission combination in this setup have covered approximately 81,000 miles. While this mileage may not be considered low, the engine and transmission have been well maintained, ensuring they continue to perform at a high level. The engine is equipped with factory GM components, including a serpentine belt system, power steering pump, and an air conditioning compressor.

This engine and transmission combination is an excellent choice for those seeking a high-performance, manual transmission setup. The LS2 engine delivers impressive power and torque, while the T56 transmission provides smooth and efficient shifting. With proper maintenance, this setup is capable of delivering years of reliable and enjoyable driving experiences.

The 6L829066-NP 2006 Pontiac GTO engine with a 6.0L LS2 powerplant, T56 6-speed manual transmission, and 81k miles is a popular choice among enthusiasts due to its high-performance capabilities. Here are some pros and cons that can help you make an informed decision about purchasing this engine and transmission setup.

1. Power and Performance: The LS2 engine is renowned for its power and performance, producing 400 horsepower and 415 lb-ft of torque. This engine is ideal for those seeking a thrilling driving experience.

2. Manual Transmission: A manual transmission offers a more engaging driving experience, allowing the driver to have greater control over the vehicle's power output and gear selection.

3. Durability: The LS2 engine is known for its durability and reliability, making it a wise investment for those seeking a long-term solution.

4. Affordability: Compared to newer engines and transmissions, the 6L829066-NP setup can be a more affordable option for those on a budget.

5. Availability of Parts: The popularity of the LS2 engine and T56 transmission means that spare parts are readily available, ensuring that maintenance and repairs are relatively straightforward.

1. Fuel Efficiency: The high-performance capabilities of the LS2 engine and manual transmission setup come at the cost of fuel efficiency. Expect lower fuel economy compared to modern engines.

2. Maintenance: The manual transmission requires regular maintenance, such as clutch replacement and transmission fluid changes, to ensure optimal performance.

3. Shift Quality: The T56 transmission, while durable, can have a rough shift quality, especially when cold.

4. Compatibility: The engine and transmission setup may not be compatible with all vehicles, so it's important to ensure that the engine and transmission will fit your specific application.

5. Noise Levels: The LS2 engine and manual transmission setup can be noisy, especially during aggressive driving.

The 6L829066-NP 2006 Pontiac GTO engine with a 6.0L LS2 powerplant, T56 6-speed manual transmission, and 81k miles offers a thrilling driving experience, durability, and affordability. However, it comes with the drawbacks of lower fuel efficiency, increased maintenance requirements, rough shift quality, and compatibility issues.

If you're looking for a high-performance engine and transmission setup that offers a more engaging driving experience, the 6L829066-NP 2006 Pontiac GTO engine is an excellent choice. However, be prepared for the added maintenance requirements, lower fuel efficiency, and potential compatibility issues. If these concerns outweigh the benefits, you may want to consider a modern engine or transmission setup that offers improved fuel efficiency and smoother operation. Ultimately, the decision comes down to your personal priorities and preferences.

Details:

Electronic Gas Pedal. Complete Front Accessories w/ Brackets and Bolts. Tremor T56 6-Speed Manual Transmission. All Sensors on Engine.

Warranty commences with date of delivery. Engine and trans are backed by a SIX MONTH parts warranty -shipping. SHIPPING IS FREE to the US 48 states. Mileage documentation available.

Complete Engine Wiring Harness. What is included: Complete 2006 LS2 6.0L Engine. ECM Computer. 2006 Pontiac GTO 6.0L LS2 Engine Motor w/ T56 6-Speed Manual Trans 81K Miles.

part #: 6l829066 prices

• $37.66-$9995.00

specifications grokengines:

• for models: Ls2, Gto
• for makes: Pontiac
• for years: 2006
• mpn: 6l829066-np
• series: Ls
• type: Engine
• manufacturer warranty: No Warranty
• block type: Lsx
• number of valves: 16
• engine size: 6.0l
• fuel type: Gasoline

returns grokengines:

• time: 30 Days
• paid by: Buyer
• policy: Returns Accepted

offer grokengines:

• sold: 0
• options: Ship-to-home
• availability: In Stock
• best offers: True
• started: October 21, 2025
• quantity: 1

general grokengines:

• condition: Used
• Car Truck Parts Accessories > Engines Engine Parts > Engines

seller grokengines:

• rating: 98.7%
• city: Easley, South Carolina
• # reviews: 98104

payments grokengines:

• wallet: Google-pay
• other
• credit card: Mastercard

shipping grokengines:

• cost: $0.00
• type: Fixed
• service: Flat Rate Freight
• class: Freight

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