Beyea SBC Modified Header 1-3/4 to 1-7/8 Shaw — Fits IMCA UMP Modified

SKU: GBSK_IDM-23S2-B
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About Beyea Beyea engineers high-quality automotive parts and accessories trusted ...Read More

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Sale price$472.99
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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 Beyea

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

Watch in action

High-Flow Headers for Modified Racing

Upgrade your IMCA-UMP Modified with these high-performance Beyea headers, specifically designed for Shaw chassis. These headers feature a stepped primary design, transitioning from 1.75 inches to 1.875 inches to optimize exhaust gas velocity and scavenging. The 3.5-inch collector ensures that your engine can clear exhaust gases efficiently, even at high RPMs. Built from durable steel and finished in a protective black paint, these headers are designed to handle the rough-and-tumble nature of dirt track racing.

Performance Features

  • Stepped 1.75 inch to 1.875 inch primary tubes
  • 3.5 inch collector for enhanced flow
  • Includes gaskets for a hassle-free installation
  • Designed for Shaw Modified chassis
  • Durable black paint finish for corrosion resistance

These headers are engineered to help your Small Block Chevy engine produce maximum power where you need it most. The stepped design is particularly effective at broadening the torque curve, giving you the acceleration needed to pull out of corners and down the straights. With gaskets included, you have everything you need for a professional-grade installation. Trust in the quality and performance of Beyea headers to keep your Modified competitive all season long. Explore the full range of racing exhaust solutions available at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Beyea

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

Watch in action

High-Flow Headers for Modified Racing

Upgrade your IMCA-UMP Modified with these high-performance Beyea headers, specifically designed for Shaw chassis. These headers feature a stepped primary design, transitioning from 1.75 inches to 1.875 inches to optimize exhaust gas velocity and scavenging. The 3.5-inch collector ensures that your engine can clear exhaust gases efficiently, even at high RPMs. Built from durable steel and finished in a protective black paint, these headers are designed to handle the rough-and-tumble nature of dirt track racing.

Performance Features

  • Stepped 1.75 inch to 1.875 inch primary tubes
  • 3.5 inch collector for enhanced flow
  • Includes gaskets for a hassle-free installation
  • Designed for Shaw Modified chassis
  • Durable black paint finish for corrosion resistance

These headers are engineered to help your Small Block Chevy engine produce maximum power where you need it most. The stepped design is particularly effective at broadening the torque curve, giving you the acceleration needed to pull out of corners and down the straights. With gaskets included, you have everything you need for a professional-grade installation. Trust in the quality and performance of Beyea headers to keep your Modified competitive all season long. Explore the full range of racing exhaust solutions available at GGCRACING.

Product Details

Product Description

About Beyea

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

Watch in action

High-Flow Headers for Modified Racing

Upgrade your IMCA-UMP Modified with these high-performance Beyea headers, specifically designed for Shaw chassis. These headers feature a stepped primary design, transitioning from 1.75 inches to 1.875 inches to optimize exhaust gas velocity and scavenging. The 3.5-inch collector ensures that your engine can clear exhaust gases efficiently, even at high RPMs. Built from durable steel and finished in a protective black paint, these headers are designed to handle the rough-and-tumble nature of dirt track racing.

Performance Features

  • Stepped 1.75 inch to 1.875 inch primary tubes
  • 3.5 inch collector for enhanced flow
  • Includes gaskets for a hassle-free installation
  • Designed for Shaw Modified chassis
  • Durable black paint finish for corrosion resistance

These headers are engineered to help your Small Block Chevy engine produce maximum power where you need it most. The stepped design is particularly effective at broadening the torque curve, giving you the acceleration needed to pull out of corners and down the straights. With gaskets included, you have everything you need for a professional-grade installation. Trust in the quality and performance of Beyea headers to keep your Modified competitive all season long. Explore the full range of racing exhaust solutions available at GGCRACING.

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