KB Hypereutectic Pistons 4.040 Bore Flat Top Piston Set — Fits Small Block Ford

SKU: BJDT_KB115.040
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About KB Hypereutectic Pistons KB Hypereutectic Pistons engineers high-quality automotive ...Read More

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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 KB Hypereutectic Pistons

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

High-Quality KB Hypereutectic Pistons for Small Block Ford

Optimize your Small Block Ford engine with this set of eight KB Hypereutectic flat top pistons. Designed for a 4.040-inch bore, these pistons are specifically crafted for engines that have been bored out for a fresh start. With a -6.5cc volume, they provide consistent compression and reliable performance for your automotive project.

Performance Features

  • Bore Size: 4.040 inches
  • Piston Design: Flat Top
  • Compression Volume: -6.50 cc
  • Ring Grooves: 5/64 x 5/64 x 3/16 inch
  • Material: Durable hypereutectic aluminum alloy

The hypereutectic construction is a game-changer for engine builders. By significantly reducing thermal expansion, these pistons allow for tighter tolerances, which translates to better ring sealing and less oil consumption. This results in a more efficient engine that runs smoother and produces more power. These pistons are the perfect balance of durability and affordability, making them an ideal choice for both daily drivers and performance-oriented street cars.

When you choose KB, you are choosing decades of engine building expertise. These pistons are designed to handle the stresses of high-performance operation while maintaining long-term reliability. Whether you are restoring a classic Ford or building a custom engine, these components provide the precision you need to succeed. Upgrade your engine's internal components with confidence. Find all the parts you need for your next build at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About KB Hypereutectic Pistons

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

High-Quality KB Hypereutectic Pistons for Small Block Ford

Optimize your Small Block Ford engine with this set of eight KB Hypereutectic flat top pistons. Designed for a 4.040-inch bore, these pistons are specifically crafted for engines that have been bored out for a fresh start. With a -6.5cc volume, they provide consistent compression and reliable performance for your automotive project.

Performance Features

  • Bore Size: 4.040 inches
  • Piston Design: Flat Top
  • Compression Volume: -6.50 cc
  • Ring Grooves: 5/64 x 5/64 x 3/16 inch
  • Material: Durable hypereutectic aluminum alloy

The hypereutectic construction is a game-changer for engine builders. By significantly reducing thermal expansion, these pistons allow for tighter tolerances, which translates to better ring sealing and less oil consumption. This results in a more efficient engine that runs smoother and produces more power. These pistons are the perfect balance of durability and affordability, making them an ideal choice for both daily drivers and performance-oriented street cars.

When you choose KB, you are choosing decades of engine building expertise. These pistons are designed to handle the stresses of high-performance operation while maintaining long-term reliability. Whether you are restoring a classic Ford or building a custom engine, these components provide the precision you need to succeed. Upgrade your engine's internal components with confidence. Find all the parts you need for your next build at GGCRACING.

Product Details

Product Description

About KB Hypereutectic Pistons

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

High-Quality KB Hypereutectic Pistons for Small Block Ford

Optimize your Small Block Ford engine with this set of eight KB Hypereutectic flat top pistons. Designed for a 4.040-inch bore, these pistons are specifically crafted for engines that have been bored out for a fresh start. With a -6.5cc volume, they provide consistent compression and reliable performance for your automotive project.

Performance Features

  • Bore Size: 4.040 inches
  • Piston Design: Flat Top
  • Compression Volume: -6.50 cc
  • Ring Grooves: 5/64 x 5/64 x 3/16 inch
  • Material: Durable hypereutectic aluminum alloy

The hypereutectic construction is a game-changer for engine builders. By significantly reducing thermal expansion, these pistons allow for tighter tolerances, which translates to better ring sealing and less oil consumption. This results in a more efficient engine that runs smoother and produces more power. These pistons are the perfect balance of durability and affordability, making them an ideal choice for both daily drivers and performance-oriented street cars.

When you choose KB, you are choosing decades of engine building expertise. These pistons are designed to handle the stresses of high-performance operation while maintaining long-term reliability. Whether you are restoring a classic Ford or building a custom engine, these components provide the precision you need to succeed. Upgrade your engine's internal components with confidence. Find all the parts you need for your next build at GGCRACING.

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