HOLLEY SE3-GMG-LSX-A Ls Swap Kit Gm Body Auto Transmission 810215393510 LEVEL-3 78-88

( Brand: Holley ), ( Manufacturer Part Number: SE3-GMG-LSX-A ), ( Part Type: Transmission ), ( Return Notes: Please Verify Fitment Before Ordering No Return ), ( UPC: 810215393510 )

Review HOLLEY Level-3 Ls Swap Kit 78-88 Gm G body Auto Transmission

Holley SE3-GMG-LSX Level 3 LS Swap Kit for 78-88 GM G-Body Automatic Transmission

The Holley SE3-GMG-LSX Level 3 LS Swap Kit is a comprehensive solution designed for automotive enthusiasts looking to swap a General Motors (GM) 78-88 G-Body vehicle with a LS engine. This kit is specifically engineered to simplify the installation process and ensure a proper fitment of the LS engine and automatic transmission.

1. Engine and Transmission Mounts: This swap kit includes heavy-duty engine and transmission mounts, designed for the increased power and torque of the LS engine. These mounts offer improved stability and reduce unwanted vibrations.

2. Adapter Plate: A billet aluminum adapter plate is included in the kit, which facilitates the connection between the GM automatic transmission and the LS engine. This adapter plate is precision-machined for a perfect fitment and easy installation.

3. Transmission Crossmember: A new transmission crossmember is part of the kit, which is engineered to accommodate the GM automatic transmission and the LS engine. The crossmember is made of high-strength steel for durability and stability.

4. LS Engine Wiring Harness: The kit comes with a complete LS engine wiring harness, ensuring an easy connection between the engine and the vehicle's electrical system. This harness is designed for a plug-and-play installation.

5. Power Steering Kit: The Holley SE3-GMG-LSX Level 3 LS Swap Kit includes a power steering kit, which is necessary for proper steering function when swapping to a LS engine. The power steering kit is compatible with the GM automatic transmission.

6. Throttle Cable Kit: The kit also includes a throttle cable kit, which allows for easy connection between the LS engine and the GM automatic transmission. This cable kit ensures smooth throttle response and operation.

7. Engine Accessories: The kit includes various engine accessories such as a water pump, alternator, and power steering pump, ensuring a complete and functional LS engine installation.

8. Detailed Instructions: The Holley SE3-GMG-LSX Level 3 LS Swap Kit comes with detailed instructions, making the installation process as straightforward and hassle-free as possible. The instructions include step-by-step guidance, diagrams, and photographs.

9. High-Quality Components: All components in the Holley SE3-GMG-LSX Level 3 LS Swap Kit are of the highest quality, ensuring a reliable and durable LS engine swap for your GM G-Body vehicle.

10. Compatibility: This kit is compatible with the 78-88 GM G-Body vehicles featuring an automatic transmission, including models such as the Malibu, Monte Carlo, and Oldsmobile Cutlass.

By investing in the Holley SE3-GMG-LSX Level 3 LS Swap Kit, you'll be able to upgrade your GM G-Body vehicle with a powerful and efficient LS engine, while ensuring a hassle-free installation process. The quality and attention to detail that goes into each component of this kit make it an excellent choice for any enthusiast looking to breathe new life into their classic GM vehicle.

The Holley SE3-GMG-LSX-A Level 3 LS Swap Kit is designed for 78-88 GM G-body cars with an automatic transmission. This kit allows the installation of a General Motors LS engine in place of the original engine. Let's examine the pros and cons of buying this kit.

1. Power Increase: The LS engine is known for its power and reliability. Installing this engine in your G-body car will result in a significant increase in horsepower and torque.

2. Improved Fuel Economy: The LS engine is more fuel-efficient than the original engine, which will help you save money on gas.

3. Modern Technology: The LS engine comes with modern features such as electronic fuel injection, which will make your car more reliable and easier to tune.

4. Wide Availability of Parts: The LS engine is a popular platform, which means that there are plenty of aftermarket parts available for it. This will make it easier and cheaper to maintain your car.

1. Cost: The Holley SE3-GMG-LSX-A Level 3 LS Swap Kit is a expensive option. The cost of the kit, as well as the cost of any additional parts or labor required for the installation, can add up quickly.

2. Complexity: Installing an LS engine in a G-body car is a complex process that requires a high level of technical expertise. This means that you may need to hire a professional to do the installation for you, which will add to the cost.

3. Compatibility Issues: There may be compatibility issues between the LS engine and the automatic transmission in your G-body car. These issues may require additional parts or modifications to the transmission to make it work properly with the new engine.

The Holley SE3-GMG-LSX-A Level 3 LS Swap Kit offers significant power and fuel economy benefits for 78-88 GM G-body cars with automatic transmissions. However, the cost and complexity of the installation process may be a deterrent for some buyers. If you have the technical expertise and the budget to handle the installation, this kit can be a great investment for your car. Otherwise, you may want to consider other, less expensive upgrade options.

If you are serious about upgrading the performance of your 78-88 GM G-body car with an automatic transmission, the Holley SE3-GMG-LSX-A Level 3 LS Swap Kit is a solid choice. However, before making a purchase, be sure to carefully consider the cost and complexity of the installation process. It may be helpful to speak with a professional mechanic or other experienced LS engine installer to get a better understanding of what is involved in the installation and to get an estimate of the total cost.

Details:

Holley has taken the guesswork out of picking right parts needed to swap your GM muscle car or truck with our Swap Essentials Packages. Take the hassle out of your next swap with Holley's Swap Essentials Packages. Domestic Shipping: The shipping cost on this listing or the Free Shipping is for lower 48 States. Condition: New.

MPN: SE3-GMG-LSX-A. Brand: Holley. Manufacturer: Holley. Please refer to the item details and for fitment information.

Fitment Type: MVL. Depending on your budget, theres multiple levels to choose from; engine and transmission mount packages full mount, exhaust, front accessory drive packages, with savings stack along the way.

part #: se3gmglsx price

• $2092.35

specifications othellodrivetrain:

• brand: Holley
• mpn: Se3-gmg-lsx-a
• part type: Transmission
• return notes: Please Verify Fitment Before Ordering No Return
• upc: 810215393510

general othellodrivetrain:

• Car Truck Parts Accessories > Transmission Drivetrain > Other Transmission Drivetrain
• condition: New

seller othellodrivetrain:

• # reviews: 176666
• city: Grant, Michigan
• rating: 99.4%

returns othellodrivetrain:

• policy: No Returns

offer othellodrivetrain:

• started: April 18, 2026
• sold: 0
• options: Ship-to-home
• quantity: 3
• availability: In Stock

shipping othellodrivetrain:

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

payments othellodrivetrain:

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

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