1968 Impala Convertible LS Swap Guide

Are you dreaming of blending classic style with modern performance? The 1968 Chevrolet Impala convertible, a true icon, is the perfect candidate for an LS restomod. This guide delves into every aspect of transforming your classic beauty with a modern LS engine, offering expert insights and actionable advice. We will cover everything from selecting the right LS engine to the final touches, ensuring your Impala not only looks stunning but also delivers exhilarating performance.

Why LS Swap Your 1968 Impala Convertible?

An LS swap offers numerous advantages. LS engines are known for their reliability, power, and efficiency. They are also widely available and relatively affordable. By swapping in an LS engine, you're not just upgrading the engine; you're modernizing the entire driving experience. You'll gain improved horsepower, torque, and fuel economy, all while retaining the classic aesthetics of your Impala. It's a fantastic way to enjoy a vintage car with the benefits of contemporary technology.

Benefits of an LS Swap:

• Enhanced Performance: Increased horsepower and torque compared to the original engine.
• Improved Reliability: LS engines are known for their robust design and durability.
• Better Fuel Economy: Modern engine technology offers improved fuel efficiency.
• Wider Availability of Parts: LS engines and their components are readily available.
• Easier Maintenance: Modern engine designs often simplify maintenance procedures.

Choosing the Right LS Engine for Your 1968 Impala

Selecting the appropriate LS engine is a crucial first step. Several LS engine options exist, each with unique characteristics and power outputs. The choice depends on your performance goals, budget, and the modifications you're willing to make. For a street-driven Impala, an LS1 or LS2 engine offers an excellent balance of power and drivability. If you're seeking more power, consider an LS3 or LS7. However, these engines may require more extensive modifications.

LS Engine Options:

• LS1: A popular choice for its balance of power and affordability, typically producing around 350-400 horsepower.
• LS2: An upgrade from the LS1, offering slightly more power and torque.
• LS3: A high-performance option, producing around 430-500 horsepower, often requiring more modifications.
• LS7: The most powerful naturally aspirated LS engine, offering over 500 horsepower, best for experienced builders.

Considerations when choosing an LS Engine:

• Budget: Engine cost, as well as the need for supporting modifications.
• Desired Power Output: Determine your performance goals.
• Compatibility: Ensure the engine fits within the Impala's engine bay.
• Availability: Consider the ease of finding parts and support.

Essential Components for the LS Swap

An LS swap involves more than just the engine. You'll need various supporting components to ensure everything works seamlessly. These components include an engine wiring harness, engine mounts, headers, a fuel system upgrade, and a transmission. Each component plays a vital role in the swap's success. Ignoring any aspect can lead to significant problems down the line. Investing in quality parts upfront will save time and money.

Key Components:

• Engine Wiring Harness: An aftermarket harness tailored for your LS engine and the Impala's electrical system.
• Engine Mounts: Specifically designed to bolt the LS engine into the Impala's chassis.
• Headers: Designed for LS engines and the Impala's engine bay, improving exhaust flow.
• Fuel System: Upgraded fuel pump, lines, and possibly a fuel tank.
• Transmission: A suitable transmission that can handle the LS engine's power, such as a modern automatic or a manual transmission.
• Cooling System: Upgraded radiator and fan setup to keep the engine from overheating.

Step-by-Step Guide: LS Swapping Your 1968 Impala Convertible

The LS swap process requires patience and attention to detail. This section provides a detailed step-by-step guide to help you through the process. — Countdown To January 6th: How Many Days?

Step 1: Preparation and Planning

• Inventory: Make a complete inventory of all the parts you will need. This helps prevent delays.
• Workspace: Prepare a clean, well-lit workspace to minimize the chances of mistakes.
• Tools: Gather the necessary tools. This includes a jack, jack stands, wrenches, sockets, and specialized tools for the LS engine.

Step 2: Removing the Old Engine and Transmission

• Disconnect: Disconnect the battery, drain fluids, and remove all components connected to the engine.
• Detach: Detach the engine and transmission from the car.
• Removal: Carefully remove the engine and transmission from the engine bay.

Step 3: Engine and Transmission Preparation

• Fitment: Test fit the LS engine into the Impala’s engine bay.
• Mounts: Install the engine mounts.
• Transmission: Install the transmission and connect it to the engine.

Step 4: Installing the LS Engine

• Lowering: Carefully lower the LS engine and transmission into the engine bay.
• Mounting: Secure the engine and transmission using the mounts.
• Alignment: Double-check alignment to ensure proper fit.

Step 5: Wiring and Fuel System

• Wiring: Connect the engine wiring harness, ensuring all connections are secure.
• Fuel Lines: Install the upgraded fuel pump, lines, and any necessary fuel tank modifications.
• Sensors: Connect all engine sensors.

Step 6: Exhaust and Cooling Systems

• Headers: Install the headers.
• Exhaust: Connect the exhaust system.
• Radiator: Install the upgraded radiator and fan setup.
• Coolant Lines: Connect coolant lines.

Step 7: Final Assembly and Testing

• Fluids: Fill the engine with fluids (oil, coolant, transmission fluid).
• Start-Up: Connect the battery and attempt to start the engine. Check for leaks.
• Testing: Test drive and make necessary adjustments.

Choosing the Right Transmission

The transmission plays a crucial role in transferring power from the engine to the wheels. Selecting the appropriate transmission is as important as choosing the engine. For a 1968 Impala LS swap, consider a modern automatic transmission like the GM 4L60E, 4L80E, or a Tremec T56 manual transmission, depending on your preference and budget. Ensure the transmission can handle the LS engine's torque and that it fits properly in the Impala's chassis.

Transmission Options:

• 4L60E: A popular and relatively affordable option, suitable for many LS engine swaps.
• 4L80E: A heavier-duty transmission, ideal for high-horsepower builds.
• Tremec T56: A manual transmission offering excellent performance and control.

Fuel System Upgrades

Upgrading the fuel system is crucial for a successful LS swap. The original fuel system of your 1968 Impala was not designed to handle the fuel demands of an LS engine. You will likely need to upgrade the fuel pump, fuel lines, and potentially the fuel tank. This upgrade ensures the engine receives the necessary fuel supply and prevents potential issues like lean conditions, which can damage the engine. A high-flow fuel pump and properly sized fuel lines are essential.

Fuel System Components:

• High-Flow Fuel Pump: An in-tank or inline fuel pump rated to handle the LS engine's flow requirements.
• Fuel Lines: Upgraded fuel lines made of a material compatible with modern fuels.
• Fuel Tank: Consider upgrading to a fuel tank designed to accommodate a high-flow fuel pump.

Addressing Common Challenges and Troubleshooting

LS swaps can present various challenges. Anticipating potential issues and having solutions ready can save time and frustration. Common challenges include: engine fitment issues, wiring complications, and cooling problems.

Common Problems and Solutions:

• Engine Fitment: Ensure proper clearance around the engine and transmission. Sometimes, slight modifications to the firewall or transmission tunnel are necessary.
• Wiring: Use a well-made wiring harness and double-check all connections. Consult wiring diagrams and seek help from experienced individuals when needed.
• Cooling Issues: Ensure proper airflow through the radiator and fan system. Consider using a high-performance radiator and fan setup.

Safety Considerations for Your LS Swap

Safety should be a top priority during an LS swap. Working on vehicles involves inherent risks. Always wear appropriate safety gear, such as eye protection, gloves, and sturdy footwear. Disconnect the battery before starting any work. Properly support the vehicle using jack stands. If you’re not experienced with automotive work, consider consulting a professional mechanic to ensure the job is completed safely.

Safety Tips:

• Eye Protection: Always wear safety glasses.
• Gloves: Wear gloves to protect your hands.
• Jack Stands: Never work under a vehicle supported only by a jack.
• Battery Disconnect: Disconnect the battery before beginning work.

Cost Analysis and Budgeting for Your LS Restomod

An LS swap is an investment. The total cost varies depending on the engine choice, the condition of your Impala, and whether you do the work yourself. Create a detailed budget that includes the cost of the engine, transmission, all supporting components, tools, and any potential labor costs. Research prices and shop around to find the best deals. Be prepared for unexpected expenses. — Nurse Practitioner Salary In NYC: A Comprehensive Guide

Budget Components:

• Engine: The cost of the LS engine itself.
• Transmission: The cost of the transmission.
• Supporting Components: Headers, engine mounts, fuel system upgrade, wiring harness, radiator, etc.
• Tools: Any tools you need to purchase.
• Labor: If you plan on hiring a mechanic.

Resources and Further Reading

Several resources can help you throughout your LS swap journey. Online forums, YouTube channels, and dedicated websites offer a wealth of information. Consider joining online communities where you can ask questions and share your progress. Consult reputable automotive repair manuals and seek advice from experienced mechanics. Learning from others' experiences can save you time and prevent costly mistakes.

Recommended Resources:

• LS1Tech.com: A popular forum for LS engine enthusiasts.
• YouTube Channels: Search for LS swap tutorials and project builds.
• Repair Manuals: Consult repair manuals specific to your vehicle and the LS engine.

Conclusion: Revitalizing Your 1968 Impala with an LS Swap

An LS swap is a rewarding project that transforms your 1968 Impala convertible into a modern classic. By carefully planning, selecting the right components, and following the steps outlined in this guide, you can successfully complete an LS swap. The result will be a beautifully restored vehicle that delivers exhilarating performance and modern reliability. Embrace the project, and enjoy the journey of breathing new life into your Impala.

FAQ Section:

Q: How much does an LS swap typically cost?

A: The cost can vary greatly, from $5,000 to $15,000 or more, depending on the engine, transmission, and the amount of labor.

Q: What is the best LS engine for a 1968 Impala?

A: The LS1 and LS2 are excellent choices for a balance of power, reliability, and cost. If you want more power, consider an LS3 or LS7.

Q: Can I do an LS swap myself?

A: Yes, with the right tools, skills, and patience. However, it can be a challenging project, so be prepared for a learning curve.

Q: What are the main challenges of an LS swap?

A: Common challenges include engine fitment, wiring, and cooling system modifications.

Q: Where can I find parts for an LS swap?

A: Parts can be sourced from various vendors, online retailers, and salvage yards. Make sure to choose reputable suppliers.

Q: Will an LS swap increase my Impala's value?

A: Yes, an LS swap can increase your Impala's value, especially if done correctly with quality parts and craftsmanship. — Days Until December 16th: Your Countdown Guide