Our products are designed based on OEM specifications and are suitable for unmodified vehicles. If your vehicle has been modified, compatibility or installation cannot be guaranteed. We recommend confirming your vehicle's setup or consulting our customer service team before purchase. We're here to help!
Description
Flashark Exhaust Header for 1977-1979 Ford Bronco F100 F150 F250 F350 4WD 351M/400M 5.8L 6.6L P/U
Upgrade your 1977-1979 Ford Bronco, F-100, F-150, F-250, or F-350 (4WD) with Flashark Exhaust Headers designed for 351M and 400M engines (5.8L/6.6L). These headers improve exhaust flow, reduce back pressure, and boost horsepower for optimal engine performance.
Fitment:
- 1978-1979 Ford Bronco – 351M/400M 5.8L/6.6L
- 1977-1979 Ford F-100 – 351M/400M 5.8L/6.6L
- 1977-1979 Ford F-150 – 351M/400M 5.8L/6.6L
- 1977-1979 Ford F-250 – 351M/400M 5.8L/6.6L
- 1977-1979 Ford F-350 – 351M/400M 5.8L/6.6L
Details:
Standard Uncoated Headers; 1-5/8 in. Tube Dia; FULL-LENGTH Design
Primary Tube Diameter (in):1.625
Tubes Tube Diameter:1-5/8 in
Reducer Outlet Size: 2-1/2 In.
Collector Diameter: 3 In.
Collector Size: 3 In.
Specifications:
Brand Name: FLASHARK
Certificate: ISO9001:2000
Application: Automobile Exhaust Header
Surface: Mirror Polish
Model: EH28225
Material: Stainless Steel
Our black Exhaust Header features a high-quality black coating over durable stainless steel, specifically designed for 351M and 400M engines. This extra layer enhances the appearance while protecting the header from harsh driving conditions, ensuring long-lasting performance and reliability.
Features:
- Tuned-length primary tubes for maximum exhaust scavenging and velocity
- Mandrel-bent tubing for smooth exhaust flow
- Long transition collector for decreased back pressure
- 5/16 machined flanges for a perfect seal
- Industry™s best welds for durability
- Designed for optimal performance
- All necessary hardware included for a complete installation
Exhaust Headers vs. Manifold: Why Headers Are the Best Upgrade for Your 351M Engine
The key difference between exhaust headers and manifolds is in both material and performance. Exhaust headers, made from lightweight, high-quality steel, are designed to optimize exhaust flow. Unlike thick iron manifolds, headers are longer and have individual tubes for each cylinder, which helps eliminate back pressure. This results in increased horsepower and improved efficiency, especially for 351M/400M engines.
Upgrading to Flashark Exhaust Headers will enhance engine performance and exhaust sound for your Ford Bronco or F-Series with a 351M/400M engine. Whether for daily driving or off-road adventures, these headers are engineered for maximum power with an easy, direct bolt-on installation—no modifications needed.
FAQ
Q: What is the primary tube diameter of these headers?
A: The primary tube diameter is 1-5/8 inches (1.625 inches). This size ensures smooth exhaust flow and improves performance, particularly for 351M/400M engines.
Q: Do these headers fit 4WD vehicles?
A: Yes, these Flashark Exhaust Headers are designed to fit 4WD models, including the 1977-1979 Ford Bronco, F100, F150, F250, and F350 with 351M/400M 5.8L/6.6L engines.
Q: Will these headers fit my 1977 Ford F-100 with a 351M engine?
A: Yes, these headers are compatible with the 1977 Ford F-100 equipped with a 351M engine. They are designed specifically for vehicles from 1977-1979 with 351M/400M engines.
Q: Are these headers made of stainless steel?
A: Yes, these Flashark Exhaust Headers are made of 304 stainless steel and are coated for added durability. The coating enhances the aesthetic appeal while protecting the headers from harsh driving conditions.
Q: Do these headers fit 2WD models?
A: No, these headers are specifically designed for 4WD vehicles. They may not fit 2WD models like the 1978 F250 2WD with a 400 engine, as the chassis and exhaust configurations differ between 4WD and 2WD variants.
