T&D Machine BBC Shaft Rocker Arm Kit 1.8/1.8 Ratio Full Roller — Fits Brodix SR20 Big Block Chevy

SKU: BJJD_3142-180/180
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Sale price$3,232.12
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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 T&D Machine

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

Watch in action

Aggressive 1.8 Ratio Shaft Rockers for Brodix SR20

Take your Big Block Chevy to the next level with the T&D Machine 1.8 Ratio Shaft Rocker Arm Kit, designed specifically for Brodix SR20 cylinder heads. The 1.8 ratio provides an aggressive lift increase, allowing your engine to breathe better and produce more power throughout the RPM range. This shaft-mount system is the ideal solution for high-output engines where valvetrain stability is paramount.

Why Upgrade to 1.8 Ratio?

  • 1.80 Ratio: Increases effective valve lift for improved airflow and power.
  • Full Roller Design: Reduces friction and wear, even under high-spring pressure.
  • Shaft-Mount Integrity: Eliminates stud flex, ensuring consistent timing and lift.
  • Brodix SR20 Compatibility: Precision-engineered for a perfect fit on SR20 heads.

For builders looking to extract every ounce of performance from their Brodix SR20 setup, this 1.8 ratio kit is the perfect choice. The increased lift helps maximize the flow potential of your heads, while the T&D Machine shaft-mount design ensures that the valvetrain remains stable and reliable. This kit is built to withstand the rigors of high-RPM operation, making it a staple for serious racing applications. By choosing T&D Machine, you are selecting a brand synonymous with quality and performance in the world of engine building. Elevate your engine's capabilities with these high-performance components from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About T&D Machine

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

Watch in action

Aggressive 1.8 Ratio Shaft Rockers for Brodix SR20

Take your Big Block Chevy to the next level with the T&D Machine 1.8 Ratio Shaft Rocker Arm Kit, designed specifically for Brodix SR20 cylinder heads. The 1.8 ratio provides an aggressive lift increase, allowing your engine to breathe better and produce more power throughout the RPM range. This shaft-mount system is the ideal solution for high-output engines where valvetrain stability is paramount.

Why Upgrade to 1.8 Ratio?

  • 1.80 Ratio: Increases effective valve lift for improved airflow and power.
  • Full Roller Design: Reduces friction and wear, even under high-spring pressure.
  • Shaft-Mount Integrity: Eliminates stud flex, ensuring consistent timing and lift.
  • Brodix SR20 Compatibility: Precision-engineered for a perfect fit on SR20 heads.

For builders looking to extract every ounce of performance from their Brodix SR20 setup, this 1.8 ratio kit is the perfect choice. The increased lift helps maximize the flow potential of your heads, while the T&D Machine shaft-mount design ensures that the valvetrain remains stable and reliable. This kit is built to withstand the rigors of high-RPM operation, making it a staple for serious racing applications. By choosing T&D Machine, you are selecting a brand synonymous with quality and performance in the world of engine building. Elevate your engine's capabilities with these high-performance components from GGCRACING.

Product Details

Product Description

About T&D Machine

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

Watch in action

Aggressive 1.8 Ratio Shaft Rockers for Brodix SR20

Take your Big Block Chevy to the next level with the T&D Machine 1.8 Ratio Shaft Rocker Arm Kit, designed specifically for Brodix SR20 cylinder heads. The 1.8 ratio provides an aggressive lift increase, allowing your engine to breathe better and produce more power throughout the RPM range. This shaft-mount system is the ideal solution for high-output engines where valvetrain stability is paramount.

Why Upgrade to 1.8 Ratio?

  • 1.80 Ratio: Increases effective valve lift for improved airflow and power.
  • Full Roller Design: Reduces friction and wear, even under high-spring pressure.
  • Shaft-Mount Integrity: Eliminates stud flex, ensuring consistent timing and lift.
  • Brodix SR20 Compatibility: Precision-engineered for a perfect fit on SR20 heads.

For builders looking to extract every ounce of performance from their Brodix SR20 setup, this 1.8 ratio kit is the perfect choice. The increased lift helps maximize the flow potential of your heads, while the T&D Machine shaft-mount design ensures that the valvetrain remains stable and reliable. This kit is built to withstand the rigors of high-RPM operation, making it a staple for serious racing applications. By choosing T&D Machine, you are selecting a brand synonymous with quality and performance in the world of engine building. Elevate your engine's capabilities with these high-performance components from GGCRACING.

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