LS Swap Long Tube Headers for 1979-2004 Ford Mustang Fox Body & SN95 |

High-performance stainless steel long tube headers designed for LS engine swaps in Fox Body and SN95 Mustangs. CNC flanges and mandrel bent tubing improve exhaust flow and scavenging, supporting horsepower gains in naturally aspirated or boosted LS builds. Compatible with aftermarket swap components like tubular K-members and aftermarket steering shafts.

Key Features

• 1 7/8” mandrel bent primaries

• 3” collector outlet

• Polished 304 stainless steel

• CNC machined header flanges

• Includes graphite gaskets

• Designed for LS engine swaps only

Engine & Vehicle Compatibility

• GM LS engines: 4.8L, 5.3L, 5.7L LS1, 6.0L LS2/LQ4/LQ9, 6.2L LS3/L92

• Vehicles: 1979–1993 Fox Body, 1994–2004 SN95 / New Edge
  Not compatible with stock Ford engines.

Fitment Notes

• Best installed with tubular K-member, LS swap mounts, and aftermarket steering shafts

• Clearance depends on your engine placement, K-member, and steering components

• Minor adjustments may be needed; professional installation recommended

LS Swap Builder Guide:

Swapping a GM LS engine into a Fox Body Mustang is one of the most popular performance upgrades in the Mustang community. However, header fitment can vary depending on the swap components used in your build. This guide outlines common setup considerations to help builders achieve the best results.

K-Member Compatibility

Most LS swap builds require a tubular aftermarket K-member to position the engine correctly within the Mustang chassis. Many builders use components such as an AJE tubular K-member or similar aftermarket swap systems.

Tubular K-members provide additional clearance around the engine and exhaust area, making it easier to route long tube headers.

Using the factory Mustang K-member may create clearance limitations and may require additional modification.

Steering Shaft Clearance

Fox Body LS swaps often require an aftermarket steering shaft to create sufficient clearance between the steering linkage and the header tubes.

Many builders use steering shafts from companies such as Flaming River or similar aftermarket manufacturers.

Depending on the exact engine position and swap components used, clearance adjustments may be required.

Engine Mount Position

LS swap motor mounts determine the final engine placement within the chassis. Engine position can influence header clearance with the firewall, steering shaft, and K-member.

Using swap mounts designed specifically for Fox Body LS conversions typically produces the best fitment results.

Exhaust System Integration

These headers use a 3-inch collector outlet which is compatible with many custom exhaust systems used in LS swap builds.

Builders commonly connect the collectors to:

Custom dual exhaust systems

X-pipe or H-pipe systems

Turbo or forced induction setups

Because every LS swap build is slightly different, exhaust routing after the collectors will typically be fabricated to suit the specific vehicle.

Important Fitment Note

LS swap builds vary significantly depending on engine placement, K-member design, steering shaft configuration, and transmission choice. While these headers are commonly used in Fox Body LS conversions, fitment can vary based on the components used in each build.

Professional installation and proper swap planning are recommended.

Common LS Swap Questions

Will these headers fit with a stock Mustang engine?

No. These headers are designed specifically for LS engine swap projects.

Will these headers fit with the factory K-member?

Most LS swaps use a tubular aftermarket K-member for proper engine placement and header clearance.

Do these headers clear the steering shaft?

Clearance depends on the steering shaft and motor mounts used in your build. Many builders install an aftermarket steering shaft to ensure proper clearance.

Do these headers work for turbo builds?

Yes. Long tube headers are commonly used in turbo LS swap setups where the collectors are used as the starting point for custom turbo piping.