Headers - SBM A-Body

The Headers - SBM A-Body by Patriot Exhaust represents a fundamental performance upgrade for classic Mopar A-body enthusiasts seeking to unlock engine potential and improve exhaust flow efficiency. Whether you're restoring a Dodge Dart, Plymouth Duster, or similar platform, headers replace restrictive cast-iron manifolds with tuned primary tubes designed to maximize scavenging and reduce backpressure. This upgrade is essential for any serious engine builder or street performance application where every gain in efficiency translates to real-world horsepower and torque increases.

These A-body headers feature mandrel-bent tubing construction that maintains consistent diameter through each bend, eliminating turbulent flow restrictions common in stamped manifolds. The design incorporates optimized primary tube sizing and collector geometry to promote scavenging action—a phenomenon where exhaust gases exiting one cylinder help pull gases from another, effectively increasing cylinder fill and combustion efficiency. The robust 35-pound construction indicates heavy-gauge steel tubing rated for sustained high-performance use, delivering thermal efficiency and durability across extended driving sessions and track applications.

Installation requires basic hand tools and mechanical aptitude, though clearance verification is critical given engine bay variations across model years and engine configurations. These headers bolt directly to your SBM A-body engine in place of original manifolds, requiring only gasket replacement and standard exhaust piping integration. The investment in Patriot Exhaust headers pays dividends immediately through improved throttle response, smoother power delivery, and enhanced cooling from reduced heat retention—benefits that compound when paired with carburetor tuning or fuel injection optimization.