JBA 6610S Long Tube Headers for 65-73 Ford Mustang 289/302 V8

Vehicle Fitment

• 1965-1973 Ford Mustang (5.8L 351W V8)

Features

• Long tube exhaust headers for maximum performance gains
• Mandrel-bent 1.75" stainless steel primary tubes
• Patented JBA Firecone® merged collector design
• 3/8" thick CNC-machined flanges resist warping
• Oversized exhaust ports for improved scavenging
• O2 sensor provisions for EFI applications
• Designed for high-RPM power and torque increases
• Direct bolt-on fit with included hardware

Specifications

• Part Number: 6616S
• Header style: Long tube
• Primary tube diameter: 1.75"
• Collector diameter: 3.00"
• Material: 409 stainless steel
• Finish: Natural/uncoated
• Includes: Bolts and gaskets
• Legal: For pre-emissions vehicles (1974 & older) only

Included Components

• 1x Left bank long tube header
• 1x Right bank long tube header
• 1x Full header gasket set
• 1x Hardware kit (bolts/studs)

Product Description

The JBA 6616S Long Tube Headers are high-performance exhaust headers engineered specifically for 1965-1973 Ford Mustang models equipped with the 5.8L 351W V8 engine. These long tube headers replace restrictive stock manifolds with mandrel-bent 1.75" stainless steel tubes and a patented Firecone® merged collector design to increase exhaust scavenging, maximize horsepower, and boost torque throughout the RPM range. The extra thick flanges and oversized ports improve sealing and airflow, making these headers a great upgrade for street, strip, or vintage performance builds.

Designed for classic Mustangs that are pre-emissions (1974 and older), the 6616S headers include all necessary hardware and gasket sets for a direct bolt-on installation. Their stainless steel construction ensures long-lasting durability and resistance to corrosion, while the performance-oriented design helps unlock the full potential of your small block Ford V8. Ideal for enthusiasts seeking improved engine performance and a richer exhaust tone over stock manifolds.