Speed Pro Forged Piston 4.040 Bore — Fits Small Block Chevy Engine

SKU: BHVW_L2165F40
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Sale price$449.99
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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 Speed Pro

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

Watch in action

High-Output Forged Pistons for SBC

Push your Small Block Chevy to the next level with the Speed Pro Forged Piston set. Engineered for durability and high-performance applications, these forged aluminum pistons are the ideal choice for engines that see heavy use or high-stress environments. The 4.040-inch bore size accommodates a .040 overbore, allowing you to clean up cylinder walls while increasing displacement for a slight power gain.

Performance Features

  • Material: Premium Forged Aluminum
  • Bore: 4.040 inches
  • Volume: -5.40 cc
  • Ring Grooves: 5/64 x 5/64 x 3/16 inch
  • Coating: Advanced skirt coating
  • Set: 8 Pistons included

These pistons feature a -5.40 cc dish, which helps manage compression ratios in performance builds. The inclusion of a specialized skirt coating is critical for high-performance engines, as it minimizes friction and prevents scuffing during the break-in process and under high-heat conditions. By choosing forged over cast, you are ensuring that your engine can handle the heat and pressure of aggressive driving. These pistons are the foundation of a reliable, high-horsepower engine build. Trust in the durability of Speed Pro for your next project. Get the best parts for your ride at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Speed Pro

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

Watch in action

High-Output Forged Pistons for SBC

Push your Small Block Chevy to the next level with the Speed Pro Forged Piston set. Engineered for durability and high-performance applications, these forged aluminum pistons are the ideal choice for engines that see heavy use or high-stress environments. The 4.040-inch bore size accommodates a .040 overbore, allowing you to clean up cylinder walls while increasing displacement for a slight power gain.

Performance Features

  • Material: Premium Forged Aluminum
  • Bore: 4.040 inches
  • Volume: -5.40 cc
  • Ring Grooves: 5/64 x 5/64 x 3/16 inch
  • Coating: Advanced skirt coating
  • Set: 8 Pistons included

These pistons feature a -5.40 cc dish, which helps manage compression ratios in performance builds. The inclusion of a specialized skirt coating is critical for high-performance engines, as it minimizes friction and prevents scuffing during the break-in process and under high-heat conditions. By choosing forged over cast, you are ensuring that your engine can handle the heat and pressure of aggressive driving. These pistons are the foundation of a reliable, high-horsepower engine build. Trust in the durability of Speed Pro for your next project. Get the best parts for your ride at GGCRACING.

Product Details

Product Description

About Speed Pro

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

Watch in action

High-Output Forged Pistons for SBC

Push your Small Block Chevy to the next level with the Speed Pro Forged Piston set. Engineered for durability and high-performance applications, these forged aluminum pistons are the ideal choice for engines that see heavy use or high-stress environments. The 4.040-inch bore size accommodates a .040 overbore, allowing you to clean up cylinder walls while increasing displacement for a slight power gain.

Performance Features

  • Material: Premium Forged Aluminum
  • Bore: 4.040 inches
  • Volume: -5.40 cc
  • Ring Grooves: 5/64 x 5/64 x 3/16 inch
  • Coating: Advanced skirt coating
  • Set: 8 Pistons included

These pistons feature a -5.40 cc dish, which helps manage compression ratios in performance builds. The inclusion of a specialized skirt coating is critical for high-performance engines, as it minimizes friction and prevents scuffing during the break-in process and under high-heat conditions. By choosing forged over cast, you are ensuring that your engine can handle the heat and pressure of aggressive driving. These pistons are the foundation of a reliable, high-horsepower engine build. Trust in the durability of Speed Pro for your next project. Get the best parts for your ride at GGCRACING.

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