JW Performance Transmissions Ultra-Bell SFI 30.1 Bellhousing — Fits Big Block Ford to C-4

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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 JW Performance Transmissions Inc

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

High-Performance BBF to C-4 Transmission Conversion

For racers looking to pair a powerful Big Block Ford engine with the agility of a C-4 transmission, the JW Performance Transmissions Ultra-Bell is the ultimate solution. This bellhousing is specifically engineered to handle the massive torque output of a BBF while maintaining the strict safety requirements of SFI 30.1 certification. It is the gold standard for enthusiasts who demand both performance and reliability.

Built for the Track

Crafted from premium aluminum, the Ultra-Bell provides a rigid, secure connection between your engine and transmission. This prevents the common issues associated with factory bellhousings, such as deflection and misalignment under high-load conditions. Its robust construction ensures that your drivetrain remains stable, allowing for consistent performance pass after pass.

  • Designed for Big Block Ford (BBF) engines
  • Fits C-4 transmission setups
  • SFI 30.1 certified for maximum safety
  • High-strength aluminum for durability
  • Optimized for drag racing and high-performance use
  • Ensures perfect drivetrain alignment

Investing in a JW Performance Ultra-Bell means investing in the longevity of your race car. By choosing a component that meets rigorous safety standards, you can focus on your lap times rather than your equipment. Discover the full range of professional racing drivetrain components and upgrade your vehicle today at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About JW Performance Transmissions Inc

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

High-Performance BBF to C-4 Transmission Conversion

For racers looking to pair a powerful Big Block Ford engine with the agility of a C-4 transmission, the JW Performance Transmissions Ultra-Bell is the ultimate solution. This bellhousing is specifically engineered to handle the massive torque output of a BBF while maintaining the strict safety requirements of SFI 30.1 certification. It is the gold standard for enthusiasts who demand both performance and reliability.

Built for the Track

Crafted from premium aluminum, the Ultra-Bell provides a rigid, secure connection between your engine and transmission. This prevents the common issues associated with factory bellhousings, such as deflection and misalignment under high-load conditions. Its robust construction ensures that your drivetrain remains stable, allowing for consistent performance pass after pass.

  • Designed for Big Block Ford (BBF) engines
  • Fits C-4 transmission setups
  • SFI 30.1 certified for maximum safety
  • High-strength aluminum for durability
  • Optimized for drag racing and high-performance use
  • Ensures perfect drivetrain alignment

Investing in a JW Performance Ultra-Bell means investing in the longevity of your race car. By choosing a component that meets rigorous safety standards, you can focus on your lap times rather than your equipment. Discover the full range of professional racing drivetrain components and upgrade your vehicle today at GGCRACING.

Product Details

Product Description

About JW Performance Transmissions Inc

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

High-Performance BBF to C-4 Transmission Conversion

For racers looking to pair a powerful Big Block Ford engine with the agility of a C-4 transmission, the JW Performance Transmissions Ultra-Bell is the ultimate solution. This bellhousing is specifically engineered to handle the massive torque output of a BBF while maintaining the strict safety requirements of SFI 30.1 certification. It is the gold standard for enthusiasts who demand both performance and reliability.

Built for the Track

Crafted from premium aluminum, the Ultra-Bell provides a rigid, secure connection between your engine and transmission. This prevents the common issues associated with factory bellhousings, such as deflection and misalignment under high-load conditions. Its robust construction ensures that your drivetrain remains stable, allowing for consistent performance pass after pass.

  • Designed for Big Block Ford (BBF) engines
  • Fits C-4 transmission setups
  • SFI 30.1 certified for maximum safety
  • High-strength aluminum for durability
  • Optimized for drag racing and high-performance use
  • Ensures perfect drivetrain alignment

Investing in a JW Performance Ultra-Bell means investing in the longevity of your race car. By choosing a component that meets rigorous safety standards, you can focus on your lap times rather than your equipment. Discover the full range of professional racing drivetrain components and upgrade your vehicle today at GGCRACING.

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