Eagle Balanced Rotating Assembly 489 CID .030 — Fits Big Block Chevy

SKU: BBPG_B18022030
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Sale price$2,307.99
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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 Eagle

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

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Eagle 489 CID Balanced Rotating Assembly for BBC

Unleash massive torque and horsepower with the Eagle 489 CID Balanced Rotating Assembly for Big Block Chevy engines. This high-end kit is engineered for builders who demand top-tier performance and reliability. Featuring a 4.250-inch stroke and a 4.280-inch bore, this assembly is designed to turn your block into a high-displacement powerhouse capable of dominating the track or the street.

Technical Specifications

  • Displacement: 489 CID
  • Crankshaft: Cast Steel, 4.250-inch stroke
  • Pistons: Forged for high-compression/boost
  • Bore Size: 4.280 inches
  • Rods: 6.385-inch I-Beam

This rotating assembly features forged pistons, which are essential for engines running high compression or forced induction setups. The 6.385-inch I-beam rods offer the structural strength required to manage the increased torque generated by the 489 cubic inch displacement. Because the kit is pre-balanced, you can focus on the assembly process, knowing that the rotating mass is optimized for smooth operation at high RPMs. This kit is the perfect solution for those looking to maximize their BBC potential without the hassle of sourcing individual parts. Upgrade your engine today with this professional-grade kit from Eagle. For expert advice and premium parts, visit GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Eagle

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

Watch in action

Eagle 489 CID Balanced Rotating Assembly for BBC

Unleash massive torque and horsepower with the Eagle 489 CID Balanced Rotating Assembly for Big Block Chevy engines. This high-end kit is engineered for builders who demand top-tier performance and reliability. Featuring a 4.250-inch stroke and a 4.280-inch bore, this assembly is designed to turn your block into a high-displacement powerhouse capable of dominating the track or the street.

Technical Specifications

  • Displacement: 489 CID
  • Crankshaft: Cast Steel, 4.250-inch stroke
  • Pistons: Forged for high-compression/boost
  • Bore Size: 4.280 inches
  • Rods: 6.385-inch I-Beam

This rotating assembly features forged pistons, which are essential for engines running high compression or forced induction setups. The 6.385-inch I-beam rods offer the structural strength required to manage the increased torque generated by the 489 cubic inch displacement. Because the kit is pre-balanced, you can focus on the assembly process, knowing that the rotating mass is optimized for smooth operation at high RPMs. This kit is the perfect solution for those looking to maximize their BBC potential without the hassle of sourcing individual parts. Upgrade your engine today with this professional-grade kit from Eagle. For expert advice and premium parts, visit GGCRACING.

Product Details

Product Description

About Eagle

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

Watch in action

Eagle 489 CID Balanced Rotating Assembly for BBC

Unleash massive torque and horsepower with the Eagle 489 CID Balanced Rotating Assembly for Big Block Chevy engines. This high-end kit is engineered for builders who demand top-tier performance and reliability. Featuring a 4.250-inch stroke and a 4.280-inch bore, this assembly is designed to turn your block into a high-displacement powerhouse capable of dominating the track or the street.

Technical Specifications

  • Displacement: 489 CID
  • Crankshaft: Cast Steel, 4.250-inch stroke
  • Pistons: Forged for high-compression/boost
  • Bore Size: 4.280 inches
  • Rods: 6.385-inch I-Beam

This rotating assembly features forged pistons, which are essential for engines running high compression or forced induction setups. The 6.385-inch I-beam rods offer the structural strength required to manage the increased torque generated by the 489 cubic inch displacement. Because the kit is pre-balanced, you can focus on the assembly process, knowing that the rotating mass is optimized for smooth operation at high RPMs. This kit is the perfect solution for those looking to maximize their BBC potential without the hassle of sourcing individual parts. Upgrade your engine today with this professional-grade kit from Eagle. For expert advice and premium parts, visit GGCRACING.

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