FlowTech SBC Full Length Truck Headers 1.5-inch Primary — Fits 1966-91 GM Truck/SUV

SKU: CJWH_11500FLT
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Sale price$242.95
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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 FlowTech

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

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Classic SBC Truck Headers

Revitalize your classic GM truck or SUV with FlowTech's full-length headers designed for the Small Block Chevy (SBC). These headers are engineered to increase exhaust flow, providing a noticeable boost in torque and horsepower for your 1966-91 GM vehicle. Whether you are towing, daily driving, or restoring a classic, these headers offer the performance and reliability you expect.

Product Specifications

  • Primary Diameter: 1.5 inches
  • Collector Diameter: 3 inches
  • Material: Steel
  • Finish: Black Paint
  • Fitment: 1966-91 GM Fullsize Truck/SUV (2WD/4WD)
  • Includes: Gaskets and mounting hardware

The full-length design is optimized to scavenge exhaust gases more efficiently than stock manifolds, helping your engine breathe better across the entire RPM range. The durable steel construction is finished in a high-temperature black paint to resist rust and maintain a clean look under the hood. Installation is straightforward, with all necessary gaskets and hardware included to get your truck back on the road quickly. These headers are a perfect upgrade for anyone looking to improve the performance of their classic Chevy small block without breaking the bank. Trust the quality and heritage of FlowTech for your next project. Explore our full catalog of performance parts at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About FlowTech

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

Watch in action

Classic SBC Truck Headers

Revitalize your classic GM truck or SUV with FlowTech's full-length headers designed for the Small Block Chevy (SBC). These headers are engineered to increase exhaust flow, providing a noticeable boost in torque and horsepower for your 1966-91 GM vehicle. Whether you are towing, daily driving, or restoring a classic, these headers offer the performance and reliability you expect.

Product Specifications

  • Primary Diameter: 1.5 inches
  • Collector Diameter: 3 inches
  • Material: Steel
  • Finish: Black Paint
  • Fitment: 1966-91 GM Fullsize Truck/SUV (2WD/4WD)
  • Includes: Gaskets and mounting hardware

The full-length design is optimized to scavenge exhaust gases more efficiently than stock manifolds, helping your engine breathe better across the entire RPM range. The durable steel construction is finished in a high-temperature black paint to resist rust and maintain a clean look under the hood. Installation is straightforward, with all necessary gaskets and hardware included to get your truck back on the road quickly. These headers are a perfect upgrade for anyone looking to improve the performance of their classic Chevy small block without breaking the bank. Trust the quality and heritage of FlowTech for your next project. Explore our full catalog of performance parts at GGCRACING.

Product Details

Product Description

About FlowTech

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

Watch in action

Classic SBC Truck Headers

Revitalize your classic GM truck or SUV with FlowTech's full-length headers designed for the Small Block Chevy (SBC). These headers are engineered to increase exhaust flow, providing a noticeable boost in torque and horsepower for your 1966-91 GM vehicle. Whether you are towing, daily driving, or restoring a classic, these headers offer the performance and reliability you expect.

Product Specifications

  • Primary Diameter: 1.5 inches
  • Collector Diameter: 3 inches
  • Material: Steel
  • Finish: Black Paint
  • Fitment: 1966-91 GM Fullsize Truck/SUV (2WD/4WD)
  • Includes: Gaskets and mounting hardware

The full-length design is optimized to scavenge exhaust gases more efficiently than stock manifolds, helping your engine breathe better across the entire RPM range. The durable steel construction is finished in a high-temperature black paint to resist rust and maintain a clean look under the hood. Installation is straightforward, with all necessary gaskets and hardware included to get your truck back on the road quickly. These headers are a perfect upgrade for anyone looking to improve the performance of their classic Chevy small block without breaking the bank. Trust the quality and heritage of FlowTech for your next project. Explore our full catalog of performance parts at GGCRACING.

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