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This long tube header kit is designed for listed 1977–1979 Ford F150, F250 and F350 4WD pickups and 1978–1979 Ford Bronco 4WD models equipped with 351M 5.8L or 400M 6.6L V8 engines. It is application-specific and does not fit 351W Windsor engines or 2WD models.
Constructed from T304 stainless steel with 1-5/8" OD primary tubes, 3" OD collectors and 3" to 2-1/2" weldable collector reducers. The set uses long tube 4-1 routing on each side and includes metal gaskets, reducers and mounting hardware as shown. Professional installation is recommended; verify your vehicle configuration, collector connection and downstream exhaust layout before purchase.
This product is a pair of application-specific long tube exhaust headers with collector reducers for compatible Ford 351M / 400M 4WD truck and Bronco applications. It is not a universal header kit, catback exhaust system, downpipe, turbo manifold, Windsor engine header, 2WD header kit or complete exhaust system.
Use the table below to confirm the main applications listed for this header kit. Before ordering, verify your exact model year, engine family, 4WD configuration, collector connection, downstream exhaust layout and installation clearance.
| Vehicle Name | Year | Engine | Notes |
|---|---|---|---|
| Ford F150 Pickup Truck | 1977–1979 | 5.8L 351M / 6.6L 400M V8 | 4WD models only; verify engine family, collector connection and exhaust setup |
| Ford F250 Pickup Truck | 1977–1979 | 5.8L 351M / 6.6L 400M V8 | 4WD models only; verify exact truck configuration, frame clearance and downstream exhaust connection |
| Ford F350 Pickup Truck | 1977–1979 | 5.8L 351M / 6.6L 400M V8 | 4WD models only; verify exact truck configuration and exhaust routing |
| Ford Bronco | 1978–1979 | 5.8L 351M / 6.6L 400M V8 | 4WD models only; verify engine family, collector connection and exhaust setup |
Review the product photos and received components before installation. Confirm the headers, reducers, gaskets, flanges, fasteners and downstream connection requirements before beginning installation.
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The exhaust header is the first section of the exhaust system and mounts directly to the engine. Its role is to collect exhaust gases from each cylinder and route them into the rest of the exhaust system.
Compared to many factory manifolds, header designs often focus on smoother internal flow and more uniform exhaust routing before gases move downstream.
Designed to meet packaging, cost, and emissions requirements
Prioritizes durability and compliance across broad use cases
Designed with exhaust flow characteristics in mind
Built for higher exhaust temperatures and specific vehicle platforms
Commonly used as part of an exhaust system configuration
Products on this site are intended for off-road, racing, or closed-course use where emissions laws apply. They are not represented as street legal, emissions-compliant, or legal for use on public roads unless explicitly stated.
Some products may remove, replace, relocate, disable, or alter emissions-related components, including but not limited to catalytic converters, EGR, DPF, SCR, DOC, O2 sensors, or related factory systems. Compatible tuning, calibration, or supporting modifications may be required to avoid engine codes or drivability issues.
Professional installation is recommended. Buyers are responsible for verifying product compatibility, local regulations, emissions requirements, and any required tuning or supporting modifications before purchase and installation.
Performance gains, sound changes, airflow improvements, temperature changes, fuel economy changes, fitment, and drivability results may vary. No specific performance gains are guaranteed.
