Hedman Hedders Ford 351-400M 1.625in Primary Street Headers — Fits 1977-1979 4WD Truck

SKU: FBLG_89360
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About Hedman Hedders Hedman Hedders engineers high-quality automotive parts and ...Read More

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Sale price$369.99
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Hedman Hedders

Hedman Hedders engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Hedman Hedders lineup with fast shipping and expert fitment support — order with confidence.

Power Up Your 351-400M Ford 4WD Truck

Transform your 1977-1979 Ford 4WD truck or SUV with these high-performance Hedman Hedders. Designed for the Ford 351-400M engine, these headers are built to provide superior exhaust flow compared to stock manifolds. Perfect for off-road enthusiasts and truck owners who want more torque and power for their rig, these headers are a must-have upgrade for your drivetrain.

Technical Specifications

  • Engine Fitment: Ford 351-400M (Cleveland/Modified)
  • Primary Tube Diameter: 1.625 inches
  • Collector Size: 3 inches for maximum flow
  • Finish: Black paint for a clean, professional look
  • Application: 1977-1979 Ford Fullsize 4WD Trucks and SUVs
  • Included: Gaskets and hardware for a complete installation

The 351-400M engine is a powerhouse, and these headers help it reach its full potential. By improving the scavenging effect, you'll notice better throttle response and more pulling power, which is essential for 4WD applications. The 3-inch collectors ensure that exhaust gases are evacuated quickly, preventing heat buildup and improving overall engine health. These headers are crafted from high-quality steel to ensure they survive the toughest trails and the longest hauls. Get the performance you need for your truck at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Hedman Hedders

Hedman Hedders engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Hedman Hedders lineup with fast shipping and expert fitment support — order with confidence.

Power Up Your 351-400M Ford 4WD Truck

Transform your 1977-1979 Ford 4WD truck or SUV with these high-performance Hedman Hedders. Designed for the Ford 351-400M engine, these headers are built to provide superior exhaust flow compared to stock manifolds. Perfect for off-road enthusiasts and truck owners who want more torque and power for their rig, these headers are a must-have upgrade for your drivetrain.

Technical Specifications

  • Engine Fitment: Ford 351-400M (Cleveland/Modified)
  • Primary Tube Diameter: 1.625 inches
  • Collector Size: 3 inches for maximum flow
  • Finish: Black paint for a clean, professional look
  • Application: 1977-1979 Ford Fullsize 4WD Trucks and SUVs
  • Included: Gaskets and hardware for a complete installation

The 351-400M engine is a powerhouse, and these headers help it reach its full potential. By improving the scavenging effect, you'll notice better throttle response and more pulling power, which is essential for 4WD applications. The 3-inch collectors ensure that exhaust gases are evacuated quickly, preventing heat buildup and improving overall engine health. These headers are crafted from high-quality steel to ensure they survive the toughest trails and the longest hauls. Get the performance you need for your truck at GGCRACING.

Product Details

Product Description

About Hedman Hedders

Hedman Hedders engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Hedman Hedders lineup with fast shipping and expert fitment support — order with confidence.

Power Up Your 351-400M Ford 4WD Truck

Transform your 1977-1979 Ford 4WD truck or SUV with these high-performance Hedman Hedders. Designed for the Ford 351-400M engine, these headers are built to provide superior exhaust flow compared to stock manifolds. Perfect for off-road enthusiasts and truck owners who want more torque and power for their rig, these headers are a must-have upgrade for your drivetrain.

Technical Specifications

  • Engine Fitment: Ford 351-400M (Cleveland/Modified)
  • Primary Tube Diameter: 1.625 inches
  • Collector Size: 3 inches for maximum flow
  • Finish: Black paint for a clean, professional look
  • Application: 1977-1979 Ford Fullsize 4WD Trucks and SUVs
  • Included: Gaskets and hardware for a complete installation

The 351-400M engine is a powerhouse, and these headers help it reach its full potential. By improving the scavenging effect, you'll notice better throttle response and more pulling power, which is essential for 4WD applications. The 3-inch collectors ensure that exhaust gases are evacuated quickly, preventing heat buildup and improving overall engine health. These headers are crafted from high-quality steel to ensure they survive the toughest trails and the longest hauls. Get the performance you need for your truck at GGCRACING.

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