To get big power from the stock 351 engine? Putting long tube header is one of the best options for performance, sound, and better response to the throttle.

This article covers the top 351 hot long tube headers on the market. We will explain why they are important for cars and how to choose the best one for your vehicle.

Why Upgrade to Long Tube Headers on a Ford 351?

Ford’s 351 and modified engines power the Mustang fastback. Stock exhaust manifolds aim to cut emissions and lower manufacturing costs. They are not designed for extra horsepower or a nice sound. You can also remove harmonic balancers and factory manifolds. Long-tube headers boost power by improving scavenging. They also increase torque and make your V8 sound like a race car.

Why Upgrade Your Stock Exhaust?

It is noted that the stock manifolds on these engines are rather restricted. They hinder the flow, particularly when you have fitted a full-bodied intake, camshaft, or an aggressive tune to the vehicle. A top-notch set of long-tube headers is key to the best exhaust system. They are a classic way to boost horsepower significantly.

The Real Benefits of Long Tube Headers

Horsepower and Torque Gains

Long tube headers help in better flow of exhaust while minimizing back pressure and taking advantage of scavenging. Hot gases exit quickly, so the cylinders fill with fresh air and fuel. This boosts power output because of factors like cylinder head ports and exhaust pipe lengths. RPM should improve at all points, not just the peak ones. The following are possible:

Unmistakable Exhaust Sound

One of the big reasons enthusiasts swap to 351 long tube headers? The rumble. When the primary tubes are longer, they produce deeper sounds and throatier notes with the exotic ‘V8 chop’ sound, which is quite hard to replicate.

Perfect for Performance Builds

If you are constructing a streetcar, track monster, or towing vehicle, long tube headers are the best when it comes to improvements. If used only for ten years, they are suitable for users with upgraded cams, intakes, or forced induction.

Long Tube vs. Shorty Headers

Long Tube: Primary pipes range in length from 28 to 36 inches. It improves scavenging and low/midrange torque. Best for maximizing power.

Shorty Headers: Minimally longer primaries, simple to fit, and fewer arriving pathways. Use a simpler flow at the high end, especially in the kidney, but improve movement compared to the longer pipes.

Which Should You Choose?

Long Tube: Good for the track, high-performance street, or tow vehicles. Can require custom exhaust work.

1.5 coilovers: Suitable for weightiest or slimmer cars, general use, and only keeping stock emissions systems.

Cons of Long Tube Headers:

May affect ground clearance, steering/linkage, and sometimes needs the moving of O2 sensors.

Usually, they are more expensive and also require more installation.

May increase emissions output (it is advisable to refer to the rules of the state in which you live).

Choosing the Heads for Your 351 Project

Match Header to Motor

Check on the headers that fit your specific engine type. Like many motorcycle parts, the exhaust silencer adapter varies in exhaust port sizes and bolt-hole patterns.

Fitment Considerations

They stick out more into the engine bay. This can interfere with steering shafts, starters, motors, and suspension. It can also increase unwanted heat in the cabin.

Transmission Changes: You might need to adjust a car’s header to fit swapped or aftermarket transmissions.

Material Choices

Ceramic coated: The outer layer’s heat immunity and corrosive tolerance are exceptional.

Stainless Steel: Rust-resistant, durable, long-lasting, and more costly than the other two in the initial purchase.

Legal/Regulatory Factors

It is always important to consult on the local laws about the equipment and inspection of emissions. Some of the states have banned the header swaps unless they are approved by the CARB.

Pro Tips for Installing Long Tube Headers

Requirements & Materials: You will need high-quality wrenches, penetrating oil, and header gaskets. Be certain that the clearances required before the passage of bolts are understood before bolting down any elements.

Torque and Seal Gasket: It is important to follow the manufacturer’s torque specs and sequence. For this purpose, it is advisable to recheck the system after the first few heat cycles so that leakage is avoided.

Wrapping Up Your 351 Build

High-quality 351 long tube headers are listed as one of the best modifications for Ford models. Long tube headers offer many benefits. They boost horsepower, create a stronger engine sound, and set the stage for future upgrades.