68-91 GM Truck Headers 396/454 - Coated

The 68-91 GM Truck Headers 396/454 - Coated from FLOWTECH are high-performance exhaust manifolds designed specifically for big-block powered Chevrolet and GMC trucks produced between 1968 and 1991. These headers are ideal for enthusiasts looking to enhance horsepower and throttle response in their classic trucks equipped with 396 or 454 cubic-inch engines.

Constructed with mandrel-bent tubes, these headers minimize exhaust scavenging losses and promote improved low-end torque and midrange power. The ceramic coating not only protects against thermal stress and corrosion but also helps to reflect heat away from the engine bay, which is crucial for maintaining optimal fuel mapping and reducing underhood temperatures.

These headers are perfect for restorations, performance upgrades, and engine swaps, providing an authentic fitment without extensive custom fabrication. However, installation may require additional modifications based on the specific vehicle setup, ensuring a proper fit and optimal performance.