Sylvie Willis
Painting a fuel tank is a common consideration when performing an LS swap on a C10. LS swaps are a popular modification for the Chevy C10 pickup, with many resources available to guide owners through the process. The LS swap involves replacing the original engine with an LS engine, which offers improved performance and efficiency. As part of the swap, owners may choose to relocate the fuel tank from behind the seat to under the bed, freeing up legroom and storage space. This relocation also addresses safety concerns associated with having a gas tank in the cab. In addition to the fuel tank, the fuel system, including the fuel pump, sending unit, and fuel lines, must be carefully selected and installed to ensure compatibility with the LS engine.
| Characteristics | Values |
|---|---|
| Vehicle | 1967 Chevy C10 |
| Fuel Tank | Speedway Motors 1963-72 Chevy C10 Truck EFI Under Bed Fuel Tank |
| Fuel Pump | In-tank or external |
| Fuel System | Return-style |
| Fuel Line Kit | 25-27ft of PTFE hose |
| Fuel Filter | 10 Micron in-line filter |
| Fuel Rail | Dual-line |
| Engine Swap Kit | Universal LS engine swap kit for return-style engines |
| Aftermarket Controllers | Available for LS swaps |
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What You'll Learn
Fuel tank options for a 60-66 Chevy C10
Fuel tanks are essential components of a vehicle, and when restoring a classic Chevy GMC C/K Pickup, it is crucial to ensure that the fuel tank is in good working order. Over time, gas tanks can rust, corrode, or become damaged, leading to fuel leaks and safety hazards. Therefore, it is important to replace them with high-quality, OE-style replacement tanks.
For 60-66 Chevy C10 trucks, there are several fuel tank options available:
In-Cab Fuel Tanks
These fuel tanks are designed to fit in the cab of 60-66 Chevy C10 trucks and typically have a capacity of 17 gallons. They are OE-style replacement fuel tanks that are stamped from high-quality, rust-resistant steel with lead/tin plating. These tanks feature the correct shape, size, holes, ribs, and curvature, ensuring a perfect fit. All tanks are pressure-tested for leaks, and it is recommended to replace mounting straps and sending units if they are worn out.
Aluminum Fuel Tanks
Aluminum fuel tanks are also available for 60-66 Chevy C10 trucks, offering increased fuel capacity and safety. These tanks fit behind the rear axle and are available for both bed and side fill options. The fuel tank kits include a sending unit, stainless steel fuel filler, hose, clamps, and a chrome gas cap.
OEM Fuel Tanks
OEM fuel tanks are available for 60-66 Chevy C10 trucks, locating behind the seat like the original. These tanks are designed to fit the factory location and are typically made of steel or aluminum.
When choosing a fuel tank for your 60-66 Chevy C10, it is important to consider factors such as capacity, material, and placement. Additionally, ensuring that the fuel tank is properly installed and maintained can help improve vehicle performance and prevent fuel leaks, ensuring safe and reliable operation.
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The benefits of an in-tank fuel pump
In-tank fuel pumps, also known as internal fuel pumps, are commonly found in modern fuel-injected engines. They are responsible for transferring fuel from the tank to the engine, where it is mixed with intake air. This type of pump offers several benefits and advantages over external pumps.
Firstly, in-tank fuel pumps provide effective cooling for the electric motor. By being submerged in the fuel, the pump is cooled and lubricated, extending its lifespan. This is particularly beneficial for engine performance and durability.
Secondly, placing the pump inside the tank reduces the risk of fire. While electrical components can spark and potentially ignite fuel vapors, liquid fuel will not explode in the same way. Therefore, submerging the pump in the tank is a safer option.
Additionally, in-tank fuel pumps offer cost advantages. They often eliminate the need for extra parts and labor, making them more cost-effective than external pumps. Furthermore, in-tank fuel pumps are generally more reliable and consistent in fuel delivery, especially in off-road and rally-style racing conditions.
In summary, in-tank fuel pumps offer enhanced cooling and lubrication, improved safety, cost savings, and increased reliability. These benefits contribute to the overall performance and efficiency of the vehicle, making in-tank fuel pumps a popular choice for modern engines.
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$39.89 $44.99
Fuel system components for LS engine swaps
LS engine swaps are a popular upgrade among car enthusiasts, as they significantly boost performance. One of the most critical aspects of this upgrade is ensuring that the new LS engine receives the correct amount of fuel. This involves selecting the appropriate fuel lines and pump type for your setup.
Fuel Lines
When upgrading fuel lines for an LS swap, it is essential to install high-performance fuel lines specifically designed for LS engines. These lines are made from durable materials that can withstand high pressure, heat, and corrosion. With these high-quality components, you can avoid common fuel issues like vapour lock or fuel starvation, ensuring your engine receives the fuel it needs to run smoothly.
Fuel Pumps
In-tank fuel pumps are generally preferred whenever possible. The fuel in the tank helps to cool the pump, and simple feed and return bulkhead fittings on the tank make for clean and simple plumbing options. If an in-tank pump is not used, an inline fuel pump should be installed close to the tank. For return-style setups, the fuel pressure regulator is typically placed near the fuel tank, allowing for a shorter return line. Some swappers prefer a dual-line system to maintain cooler fuel temperatures, while others opt for a single-line setup.
Fuel Filters and Regulators
It is recommended to install a filter between the pump and the fuel rails to keep the fuel system clean and prevent debris from reaching the fuel injectors and other engine components. When it comes to the regulator, the choice depends on the type of setup. For return-style setups, the regulator is integrated into the LS fuel rails. In return-less setups, a regulator is still required to achieve the required PSI for the fuel rails.
Fuel Tanks
Upgrading your fuel tank may also be necessary to ensure it can handle the fuel pressure and flow required by high-performance LS engines. Baffled tanks can help prevent the pickup from becoming uncovered as fuel sloshes around, especially when fuel levels are low. Additionally, relocating the fuel tank can free up legroom and storage space in the cabin.
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Gas tank relocation for legroom and storage
For a 1967-1972 C10, the gas tank is located behind the seat, which takes up legroom and storage space. Speedway Motors offers 67-72 C10 under-bed fuel tanks that can solve this problem by relocating the tank out of the cab and under the bed. This setup also adds much-needed rear weight bias, making it a perfect starting point for an LS swap fuel system.
There are a few ways to approach the relocation of the gas tank for legroom and storage. One option is to use a 67-72 C10 EFI with the stock tank behind the seat and an external high-pressure pump and regulator. This will require some fabrication and modification to the old tank, which was not designed to feed a modern engine. Another option is to use an in-tank pump, which offers clean and simple plumbing options and helps to cool the pump. Speedway Motors offers a 1963-72 Chevy C10 Truck EFI Under Bed Fuel Tank that is compatible with both in-tank and external pumps.
If you are performing an LS engine swap, there are a few additional considerations. You may need a regulator, such as the corvette-style regulator for a factory or slightly modified LS engine. A bypass regulator may be necessary if you are making big power or running forced induction. For a mild engine, the Speedway Deluxe AN6 GM LS Swap Fuel Filter/Regulator is a good option as it combines both filtering and regulating functions in one unit, simplifying the mounting and plumbing.
For the fuel lines, you will need approximately 25-27 feet of PTFE hose for the feed and return lines. The 30-foot kit is a common choice for LS swaps. A 10-micron in-line fuel filter is also recommended. If you have a dual tank setup, you will need to cut off the bubble flare end on the 3/8 and 5/16 hose barb ends and use hard line tube adapters to AN6 fittings. An inline fuel pump should be installed close to the tank, and you will need male AN adapters and 90-degree and 45-degree hose end fittings.
Holley offers a complete line of LS engine swap products specifically designed for the 1973-1987 C10/20 two-wheel-drive Chevy/GMC trucks, providing a trouble-free installation with ideal drivetrain geometry and component clearances.
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Fuel line kits for an LS engine swap
When it comes to fuel line kits for an LS engine swap, there are several options and factors to consider. Firstly, it's important to determine the specific vehicle and engine configuration. For example, the fuel line requirements for a 1967-1972 Chevy C10 truck with an LS engine swap will differ from those of a 1973-1987 Chevy C10 or K10 Squarebody truck. Additionally, the type of fuel pump, regulator, and tank configuration will impact the choice of fuel line kit.
For older Chevy C10 trucks from 1967 to 1972, relocating the fuel tank from behind the seat to an under-bed location can improve legroom, storage space, and weight distribution. Speedway Motors offers under-bed fuel tanks that are compatible with these vehicles and can be a good starting point for an LS swap fuel system.
For 1973-1987 Chevy C10 and K10 Squarebody trucks with an LS engine swap, Hot Rod Fuel Hose offers a universal LS engine swap kit for return-style engines. This kit includes all necessary fittings from the sending unit to the fuel rail. It is recommended to use approximately 25-27 feet of PTFE hose for the fuel feed and return lines. Additionally, a 10-micron in-line fuel filter is required, with the most popular option being the factory-style filter with AN adapters. If the vehicle has a dual-tank setup, Spectra part numbers FG05M (driver side) and FG05N (passenger side) are recommended for the fuel senders.
If the LS engine swap involves a return-less fuel rail, a regulator is required. In this case, a corvette-style regulator with a 4-micron fuel filter is commonly used to regulate the pressure to 58 PSI. Adapter fittings are needed to convert the regulator to AN fittings and PTFE fuel hose.
When choosing a fuel pump, there are options for in-tank or inline (external) pumps. In-tank pumps offer advantages such as simple plumbing options and cooling from the fuel in the tank. Speedway Motors offers a Submersible EFI Retrofit Fuel Pump Module for LS swap applications, which includes the Walbro GSS340 pump with a flow rate of 255 LPH.
For GM LS engines, Tanks Inc. offers a fuel line kit that includes various fittings, such as male and female quick disconnects, adapter fittings, and Twist-Lok fittings. This kit is compatible with most fuel tanks, except for certain specified models that require a different kit with 45-degree fittings. Additionally, GM LS engines can utilize a Black Push Lock Hose as part of the fuel line kit, providing flexibility, lightweight construction, and compatibility with various AN adapter fittings.
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Frequently asked questions
Moving the fuel tank under the bed frees up legroom and storage space in the cab. It also adds rear weight bias, which is useful if you're trying to hook up some power.
An in-tank pump will last longer and likely run better than an external pump, but it will increase the overall cost of your engine swap and be more complicated to install.
You will need approximately 25-27ft of PTFE hose to run both the feed and return on the fuel system. The 30Ft kit is the most common choice for square body LS swaps. You will also require a 10 Micron in-line fuel filter.
The first step of any engine swap is preparing your vehicle by removing the old engine and all its parts. It's best to be gentle and get an idea of where everything is.
