Mercedes Mullins
The 1964 Chevrolet Impala is a classic car, and its owners often seek to maintain or upgrade its fuel system. While some prefer to buy a complete kit to replace the fuel line, others opt for individual parts, such as fuel filters, clamps, and hoses. The process of replacing the fuel line can be straightforward, but it's important to consider the routing of the line to avoid issues with the control arm and potential vapor lock. Upgrading to a larger fuel line may require a different route to the fuel pump, and the larger line may need to be persuaded to fit into the clips. Some owners have shared their experiences with different fuel line sizes, fuel pumps, and modifications, offering insights into the challenges and considerations of upgrading the fuel system in a 1964 Impala.
| Characteristics | Values |
|---|---|
| Fuel line replacement | The 3-piece fuel line can be replaced with a preformed fuel line that follows the factory routing. |
| Fuel line size | The fuel line size is typically 3/8", but some older models used a 5/16" line. |
| Fuel line routing | The fuel line can be routed through the frame or outside the A-arm. |
| Fuel filter | It is recommended to replace the fuel filter every 20-30,000 miles to maintain performance. |
| Fuel pump | Mechanical fuel pumps move fuel at the same volume and pressure. Aftermarket fuel pumps are available for purchase. |
| Fuel tank | A compatible fuel tank may be difficult to find and may require heavy modification. |
| Fuel hose | A reproduction fuel filler hose is available in 15" or 20" lengths and can be cut to the desired length. |
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What You'll Learn
- The 3/8 fuel line takes a different route, going inside the tunnel
- The 5/16 line runs along the same path as the front-to-rear brake line
- The 3/8 line fits in the clips with some persuasion
- The fuel line kit separates in two with the top section feeding in from the top down
- The fuel line connects the fuel neck to the fuel tank
The 3/8 fuel line takes a different route, going inside the tunnel
The 3/8 fuel line takes a different route from the 5/16 line, going inside the tunnel. This route is likely to have been chosen to keep the fuel line away from the hot exhaust manifold. It is also worth noting that the 3/8 line is larger and may not fit in the clips without some adjustments.
The 3/8 fuel line is made up of three pieces with rubber hose sections connecting them. This line runs from the fuel tank to the engine, following the factory routing. The line has pre-cut holes in the tunnel to run through, but it is strange that it is placed next to a rotating steel tube. There may be a clearance issue along this route.
There are a few things to keep in mind when replacing the fuel line. Firstly, it is important to use the correct fittings and avoid splicing. Secondly, the line should be fed into the shipping block-off plugs to prevent anything from getting into them and causing kinks in the tubing. Finally, the fuel line should be checked for any signs of rust or damage, as this is a common issue that can cause leaks and even fires.
There are a variety of replacement fuel line options available for the 1964 Impala, including pre-bent stainless steel lines and high-quality big block Chevrolet fuel line kits. It is also possible to buy a complete kit to finish the installation of the fuel tank.
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The 5/16 line runs along the same path as the front-to-rear brake line
The 5/16 inch fuel line should follow the same path as the front-to-rear brake line. This is the safest and most straightforward route for the fuel line. Starting at the front of the car, the line will run along the driver's side, following the brake line's path. This means the fuel line will be secured and supported by the existing clips and brackets that hold the brake line in place. This ensures the fuel line is firmly held in place and reduces the risk of any damage or leaks.
This specific route also ensures the fuel line doesn't interfere with any other components, such as the steering or suspension. It's important to ensure that the fuel line doesn't come into contact with any moving or hot parts, and by following the brake line path, this risk is minimised. The brake line path typically provides a direct and efficient route for the fuel line, ensuring an uninterrupted flow of fuel and maintaining the integrity of the fuel system.
When installing the fuel line, it's crucial to ensure that the line is securely fastened and doesn't rub against any sharp edges or moving parts. Use the existing clips and brackets to secure the line, and add additional fasteners if necessary to ensure it is firmly held in place. This will prevent any potential damage to the fuel line and ensure its longevity.
By adhering to this routing, you maintain the aesthetic appeal under the hood and ensure the safety and functionality of the fuel system. This installation process not only guarantees the optimal performance of your vehicle but also provides peace of mind regarding its reliability and safety.
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The 3/8 line fits in the clips with some persuasion
When routing a 3-piece fuel line on a 1964 Impala, you may encounter some challenges with fitting the lines in the clips. Specifically, when dealing with the 3/8" line, you might find that it requires some persuasion to fit securely into the clips. This is a known issue and can be managed with careful adjustments.
The 3/8" line's larger diameter means it follows a different route compared to the smaller 5/16" line. This alternative path includes clips located under the upper control arm. It is worth noting that accessing and installing the line might be easier if the upper control arm is removed. This design consideration likely aimed to keep the fuel line away from the hot exhaust manifold, preventing potential issues like vapor lock.
To ensure a smooth installation of the 3/8" line, it is essential to consider the available space between the frame and the floorboards. This may require new body bushings to determine the exact clearance. Additionally, the fuel line's routing through the tunnel can be concerning, as it appears close to a rotating steel tube. However, there are pre-cut holes in the tunnel to accommodate the line, and proper installation techniques should minimize any potential risks.
When replacing the fuel lines on your 1964 Impala, it is recommended to use a suitable kit. Separating the lines into two sections, with the top section feeding in from the top down, can make the process more manageable. Remember to use shipping block-off plugs to prevent debris from entering the lines during installation. Be cautious not to force the lines, as this can cause tubing kinks. The top piece typically extends to the front of the X-member, while the other piece connects to the fuel filter and the tank.
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The fuel line kit separates in two with the top section feeding in from the top down
When replacing the fuel line on a 64 Impala, you can use a fuel line kit. This kit separates into two sections, with the top section feeding in from the top down. This is the easiest way to replace the fuel line, as the kit is designed to work with factory components. The top piece goes to the front of the x-member, and the other piece goes to the fuel filter and the tank.
It is important to use shipping block-off plugs to keep the lines clear as you feed them in. You should also be careful not to force the lines, as you can kink the tubing.
The fuel line kit is a good option if you are gathering parts for an LS swap. The kit is also a good choice if you want to avoid the heavy modification that a factory fuel injection tank would require.
The 3-piece fuel line kit is a preformed fuel line that replaces the original fuel supply line. It runs from the fuel tank to the engine, following the factory routing. The replacement lines are engineered from factory original lines and are CNC manufactured for precision.
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The fuel line connects the fuel neck to the fuel tank
Another option is to purchase a fuel line kit, which can be found for a good price at RMS. This kit includes two lines, with the top section feeding in from the top down and the other piece going to the fuel filter and the tank. It is important to use shipping block-off plugs to keep the lines clear during installation.
Additionally, there are high-quality big block Chevrolet fuel line kits available that offer a clean and precise fuel supply line for mechanical fuel pumps with a 3/8" NPT outlet. These kits can be used with Edelbrock Single-Feed or Dual-Feed fuel inlet kits.
When replacing the fuel line, it is important to consider the size of the line. Some 1964 Impalas may have a larger fuel line that takes a different route to the fuel pump, possibly to avoid the hot exhaust manifold. It is also important to ensure that the fuel line is securely clipped in place, with some clips located under the upper control arm.
Furthermore, it is worth noting that the fuel filter should be replaced regularly, ideally every 20-30,000 miles, to maintain optimal fuel line pressure.
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Frequently asked questions
The best fuel line routing for a 64 Impala depends on your engine and fuel pump setup. The factory routing runs from the fuel tank to the engine. The 3/8" line takes a different route, going inside the tunnel rather than outside the centre of the X-frame.
Classic Industries offers 1964 Chevrolet Impala Aftermarket Carb Lines, Aftermarket Fuel Lines, Fuel Clamps & Hardware, Fuel Filters, Fuel Hoses, and OE Fuel Lines. They also offer reproduction fuel filler hoses, Edelbrock small block Chevrolet fuel line kits, and vintage-style fuel filters.
You can either modify a factory fuel injection tank or use an aftermarket solution such as the Tanks Inc setup, which is a popular choice. RCI also offers a 15-gallon aluminium fuel cell with a fuel gauge sending unit.
You can use a factory fuel pump, but it may not perform well beyond factory power levels. Walbro and Holley offer fuel pumps that can be mounted externally or internally.
