67-81 GM P/U SBC Header Black Standard Duty

The 67-81 GM P/U SBC Header Black Standard Duty is a direct bolt-on exhaust manifold replacement engineered for small-block Chevrolet engines in light-duty pickup trucks. If you're rebuilding a classic Chevy truck or restoring a 1967–1981 model and want better exhaust scavenging than the restrictive cast-iron manifold, this header delivers measurable flow improvements without breaking the budget. Hedman has been manufacturing quality headers for decades, and this standard-duty design strikes the right balance between performance gain and reliability for street-driven vehicles.

Built from durable steel tube construction and finished in black powder coat, this header reduces backpressure by replacing the factory manifold with primary tubes that optimize flow characteristics for SBC engines. The standard-duty rating means this piece is tuned for street and light off-road use rather than high-RPM racing; it handles sustained highway cruising and moderate throttle demands without fatigue. The tube diameter and primary length are matched to the displacement and power band of the small-block, ensuring proper scavenging without excessive complexity. Weighing 23 pounds, it's a manageable upgrade that any competent home mechanic or shop can install using basic hand tools and a lift.

Truck owners and restoration enthusiasts working on 1967–1981 GM C/K pickups with SBC engines will see the most benefit from this header. Installation requires unbolting the original manifold, cleaning the gasket surface, and bolting on the new header with gaskets and studs provided or sourced separately. Ensure your exhaust system downstream (mid-pipe, muffler, and tailpipe) is sized appropriately to match the header's exit diameter for optimal results. This black standard-duty header works equally well on street trucks, weekend cruisers, or mild performance builds where durability and value matter more than extreme horsepower chasing.