Akerly & Childs Piston Ring Compressor 4.000 Bore — Tapered Aluminum Sleeve

SKU: GBRW_AC-RC4000
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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 Akerly & Childs

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

Watch in action

Precision Engine Assembly with Akerly & Childs

Achieving a perfect piston seal is critical for engine performance and longevity. The Akerly & Childs 4.000-inch bore tapered piston ring compressor is designed for professional engine builders and serious enthusiasts who demand accuracy. Unlike universal adjustable tools, this fixed-bore tapered sleeve ensures the rings are compressed uniformly, preventing damage or breakage during the critical piston installation process.

Technical Specifications and Benefits

  • Bore Size: Precision machined for 4.000-inch cylinder bores.
  • Material: High-grade aluminum construction for lightweight handling.
  • Finish: Black anodized coating for superior wear resistance and reduced friction.
  • Design: Tapered entry geometry allows for smooth, snag-free piston insertion.
  • Durability: Engineered to withstand repeated shop use without deformation.

The tapered design acts as a funnel, gently guiding the rings into the cylinder bore without the risk of catching or snagging. This tool is essential for high-performance builds where ring gap and seal integrity are paramount. By utilizing a specific-bore compressor, you eliminate the guesswork associated with adjustable band-style tools, ensuring every piston slides in with minimal effort and maximum safety. Whether you are refreshing a street engine or assembling a race-spec block, this tool provides the consistency required for professional results. Trust your engine build to the quality components available at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Akerly & Childs

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

Watch in action

Precision Engine Assembly with Akerly & Childs

Achieving a perfect piston seal is critical for engine performance and longevity. The Akerly & Childs 4.000-inch bore tapered piston ring compressor is designed for professional engine builders and serious enthusiasts who demand accuracy. Unlike universal adjustable tools, this fixed-bore tapered sleeve ensures the rings are compressed uniformly, preventing damage or breakage during the critical piston installation process.

Technical Specifications and Benefits

  • Bore Size: Precision machined for 4.000-inch cylinder bores.
  • Material: High-grade aluminum construction for lightweight handling.
  • Finish: Black anodized coating for superior wear resistance and reduced friction.
  • Design: Tapered entry geometry allows for smooth, snag-free piston insertion.
  • Durability: Engineered to withstand repeated shop use without deformation.

The tapered design acts as a funnel, gently guiding the rings into the cylinder bore without the risk of catching or snagging. This tool is essential for high-performance builds where ring gap and seal integrity are paramount. By utilizing a specific-bore compressor, you eliminate the guesswork associated with adjustable band-style tools, ensuring every piston slides in with minimal effort and maximum safety. Whether you are refreshing a street engine or assembling a race-spec block, this tool provides the consistency required for professional results. Trust your engine build to the quality components available at GGCRACING.

Product Details

Product Description

About Akerly & Childs

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

Watch in action

Precision Engine Assembly with Akerly & Childs

Achieving a perfect piston seal is critical for engine performance and longevity. The Akerly & Childs 4.000-inch bore tapered piston ring compressor is designed for professional engine builders and serious enthusiasts who demand accuracy. Unlike universal adjustable tools, this fixed-bore tapered sleeve ensures the rings are compressed uniformly, preventing damage or breakage during the critical piston installation process.

Technical Specifications and Benefits

  • Bore Size: Precision machined for 4.000-inch cylinder bores.
  • Material: High-grade aluminum construction for lightweight handling.
  • Finish: Black anodized coating for superior wear resistance and reduced friction.
  • Design: Tapered entry geometry allows for smooth, snag-free piston insertion.
  • Durability: Engineered to withstand repeated shop use without deformation.

The tapered design acts as a funnel, gently guiding the rings into the cylinder bore without the risk of catching or snagging. This tool is essential for high-performance builds where ring gap and seal integrity are paramount. By utilizing a specific-bore compressor, you eliminate the guesswork associated with adjustable band-style tools, ensuring every piston slides in with minimal effort and maximum safety. Whether you are refreshing a street engine or assembling a race-spec block, this tool provides the consistency required for professional results. Trust your engine build to the quality components available at GGCRACING.

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