AFCO Racing 20% Underdrive Pulley Kit — Small Block Chevy Long Water Pump

SKU: DJGV_80061
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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
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Sizing & Fit

Unleash Hidden Horsepower with the AFCO Racing 20% Underdrive Pulley Kit for SBC Long Water Pump

Maximize your engine's potential with the AFCO Racing 20% Underdrive Pulley Kit, specifically engineered for Small Block Chevy (SBC) engines equipped with a Long Water Pump. This high-performance kit is designed to reduce parasitic drag on your engine by underdriving accessories such as the alternator, power steering pump, and water pump by 20%. The direct result is a noticeable increase in horsepower and torque delivered directly to your wheels, without compromising essential accessory function for most racing and high-performance street applications. Experience a more responsive throttle and improved acceleration with this intelligent power-adding modification.

Performance-Enhancing Features:

  • 20% Underdrive Ratio: Significantly reduces parasitic power loss from engine-driven accessories, directly freeing up more horsepower for the drivetrain.
  • Precision Engineered: Designed specifically for Small Block Chevy engines with Long Water Pump configurations, ensuring perfect fitment and hassle-free installation.
  • Premium Aluminum Construction: Crafted from high-grade, lightweight aluminum, contributing to reduced rotating mass and improved engine response and efficiency.
  • Polished Finish: Provides a sleek, mirror-like aesthetic that enhances the visual appeal of your engine bay, perfect for show cars and performance builds.
  • 1 Groove V-Belt Design: Ensures compatibility with standard V-belt systems, making it a straightforward and reliable upgrade.

Why Choose an AFCO Racing Underdrive Pulley Kit?

An underdrive pulley kit is one of the most cost-effective and impactful ways to gain horsepower, and AFCO Racing delivers with this meticulously crafted component. By optimizing the rotational speed of your engine's accessories, you effectively reduce the load on the crankshaft, allowing more power to be channeled directly to the wheels for propulsion. This kit is not just about raw power; it's about intelligent engine management and efficiency, providing a tangible performance boost. The polished aluminum construction ensures both top-tier performance and a stunning visual appeal, making it a standout upgrade for any SBC enthusiast. For a reliable boost in performance, improved engine response, and a cleaner engine bay aesthetic, trust the engineering excellence of AFCO Racing available at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

Unleash Hidden Horsepower with the AFCO Racing 20% Underdrive Pulley Kit for SBC Long Water Pump

Maximize your engine's potential with the AFCO Racing 20% Underdrive Pulley Kit, specifically engineered for Small Block Chevy (SBC) engines equipped with a Long Water Pump. This high-performance kit is designed to reduce parasitic drag on your engine by underdriving accessories such as the alternator, power steering pump, and water pump by 20%. The direct result is a noticeable increase in horsepower and torque delivered directly to your wheels, without compromising essential accessory function for most racing and high-performance street applications. Experience a more responsive throttle and improved acceleration with this intelligent power-adding modification.

Performance-Enhancing Features:

  • 20% Underdrive Ratio: Significantly reduces parasitic power loss from engine-driven accessories, directly freeing up more horsepower for the drivetrain.
  • Precision Engineered: Designed specifically for Small Block Chevy engines with Long Water Pump configurations, ensuring perfect fitment and hassle-free installation.
  • Premium Aluminum Construction: Crafted from high-grade, lightweight aluminum, contributing to reduced rotating mass and improved engine response and efficiency.
  • Polished Finish: Provides a sleek, mirror-like aesthetic that enhances the visual appeal of your engine bay, perfect for show cars and performance builds.
  • 1 Groove V-Belt Design: Ensures compatibility with standard V-belt systems, making it a straightforward and reliable upgrade.

Why Choose an AFCO Racing Underdrive Pulley Kit?

An underdrive pulley kit is one of the most cost-effective and impactful ways to gain horsepower, and AFCO Racing delivers with this meticulously crafted component. By optimizing the rotational speed of your engine's accessories, you effectively reduce the load on the crankshaft, allowing more power to be channeled directly to the wheels for propulsion. This kit is not just about raw power; it's about intelligent engine management and efficiency, providing a tangible performance boost. The polished aluminum construction ensures both top-tier performance and a stunning visual appeal, making it a standout upgrade for any SBC enthusiast. For a reliable boost in performance, improved engine response, and a cleaner engine bay aesthetic, trust the engineering excellence of AFCO Racing available at GGCRACING.

Product Details

Product Description

Unleash Hidden Horsepower with the AFCO Racing 20% Underdrive Pulley Kit for SBC Long Water Pump

Maximize your engine's potential with the AFCO Racing 20% Underdrive Pulley Kit, specifically engineered for Small Block Chevy (SBC) engines equipped with a Long Water Pump. This high-performance kit is designed to reduce parasitic drag on your engine by underdriving accessories such as the alternator, power steering pump, and water pump by 20%. The direct result is a noticeable increase in horsepower and torque delivered directly to your wheels, without compromising essential accessory function for most racing and high-performance street applications. Experience a more responsive throttle and improved acceleration with this intelligent power-adding modification.

Performance-Enhancing Features:

  • 20% Underdrive Ratio: Significantly reduces parasitic power loss from engine-driven accessories, directly freeing up more horsepower for the drivetrain.
  • Precision Engineered: Designed specifically for Small Block Chevy engines with Long Water Pump configurations, ensuring perfect fitment and hassle-free installation.
  • Premium Aluminum Construction: Crafted from high-grade, lightweight aluminum, contributing to reduced rotating mass and improved engine response and efficiency.
  • Polished Finish: Provides a sleek, mirror-like aesthetic that enhances the visual appeal of your engine bay, perfect for show cars and performance builds.
  • 1 Groove V-Belt Design: Ensures compatibility with standard V-belt systems, making it a straightforward and reliable upgrade.

Why Choose an AFCO Racing Underdrive Pulley Kit?

An underdrive pulley kit is one of the most cost-effective and impactful ways to gain horsepower, and AFCO Racing delivers with this meticulously crafted component. By optimizing the rotational speed of your engine's accessories, you effectively reduce the load on the crankshaft, allowing more power to be channeled directly to the wheels for propulsion. This kit is not just about raw power; it's about intelligent engine management and efficiency, providing a tangible performance boost. The polished aluminum construction ensures both top-tier performance and a stunning visual appeal, making it a standout upgrade for any SBC enthusiast. For a reliable boost in performance, improved engine response, and a cleaner engine bay aesthetic, trust the engineering excellence of AFCO Racing available at GGCRACING.

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