Headers - Mopar 426 Hemi

The HOOKER Headers for Mopar 426 Hemi is a high-performance exhaust manifold system engineered specifically for Mopar B-Body and E-Body vehicles from 1967–1971. This pair of headers features 2.125-inch primary tubes and a 3.5-inch collector, designed to optimize exhaust scavenging and maximize power output from the legendary 426 Hemi engine platform. Constructed from heavy-duty steel with a durable black paint finish, these headers deliver the flow characteristics serious engine builders demand when maximizing horsepower and torque in vintage Mopar muscle cars.

The 2.125-inch primary diameter is specifically sized to balance scavenging efficiency across the 426 Hemi's eight cylinders without creating excessive backpressure at moderate RPMs. The 3.5-inch collector consolidates exhaust pulses into a unified stream, reducing turbulence and improving volumetric efficiency throughout the engine's operating range. Each header weighs 52.3 pounds and measures 25 by 17 by 47 inches, fitting within the engine bay constraints of first-generation B-Body and E-Body chassis while clearing typical frame rails and suspension components. Gaskets and mounting hardware are included, eliminating the need for additional purchases at installation.

These headers are intended for owners restoring or upgrading 1967–1971 Mopar B-Body and E-Body models—including the Dodge Charger, Plymouth Road Runner, and Dodge Super Bee—equipped with 426 Hemi powerplants. Whether pursuing authentic performance restoration or modern street-strip application, proper exhaust tuning with correctly sized primary and collector diameters is essential for realizing the engine's full potential. The black paint finish resists corrosion and blends with engine bay aesthetics on both original and modified vehicles.

HOOKER, a recognized supplier of performance exhaust systems for classic and modern vehicles, engineers headers with application-specific tube sizing to match OEM and aftermarket engine configurations. The Mopar 426 Hemi header design reflects decades of flow testing and real-world dyno validation across the Chrysler B-Engine family. Proper header selection is critical—undersized primaries restrict flow, while oversized designs lose scavenging advantage and waste power at lower RPMs.