Callies

Callies LS Apex 4340 Forged Crankshaft 4.000 Stroke

Callies LS Apex 4340 Forged Crankshaft 4.000 Stroke
Callies LS Apex 4340 Forged Crankshaft 4.000 Stroke
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Callies LS Apex 4340 Forged Crankshaft 4.000 StrokeCallies LS Apex 4340 Forged Crankshaft 4.000 Stroke
Callies

Callies LS Apex 4340 Forged Crankshaft 4.000 Stroke

SKU: GBTB_APO-31V-AS
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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
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Product Details

Product Description
Part Numbers
Sizing & Fit

About Callies

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

Callies LS Apex 4340 Forged Crankshaft - 4.000" Stroke

Boost the performance of your GM LS-Series engine with the Callies LS Apex 4340 Forged Crankshaft. Built for extreme duty, this crankshaft delivers the strength and precision required for high-horsepower street and track applications.

Key Features:

  • 4340 Forged Steel: Offers superior strength and durability to withstand extreme engine loads.
  • 4.000" Stroke: A popular stroke choice for maximizing displacement and power in LS engines.
  • Internal Balance: Facilitates easier engine assembly and reduces vibration for smoother operation.
  • 58X Reluctor: Ensures compatibility with factory and aftermarket GM engine control units.
  • 1-Piece Rear Main Seal: Designed for a reliable, leak-free seal.
  • Forged Construction: Provides a significant strength advantage over cast cranks for boosted or high-RPM builds.

The Callies Apex series crankshafts are renowned for their quality and performance. This 4.000" stroke variant is a versatile option for naturally aspirated, supercharged, turbocharged, or nitrous-assisted LS engines. It's the foundation for a powerful and dependable engine build.

Achieve your performance goals with Callies quality. Find the LS Apex Crankshaft at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Callies

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

Callies LS Apex 4340 Forged Crankshaft - 4.000" Stroke

Boost the performance of your GM LS-Series engine with the Callies LS Apex 4340 Forged Crankshaft. Built for extreme duty, this crankshaft delivers the strength and precision required for high-horsepower street and track applications.

Key Features:

  • 4340 Forged Steel: Offers superior strength and durability to withstand extreme engine loads.
  • 4.000" Stroke: A popular stroke choice for maximizing displacement and power in LS engines.
  • Internal Balance: Facilitates easier engine assembly and reduces vibration for smoother operation.
  • 58X Reluctor: Ensures compatibility with factory and aftermarket GM engine control units.
  • 1-Piece Rear Main Seal: Designed for a reliable, leak-free seal.
  • Forged Construction: Provides a significant strength advantage over cast cranks for boosted or high-RPM builds.

The Callies Apex series crankshafts are renowned for their quality and performance. This 4.000" stroke variant is a versatile option for naturally aspirated, supercharged, turbocharged, or nitrous-assisted LS engines. It's the foundation for a powerful and dependable engine build.

Achieve your performance goals with Callies quality. Find the LS Apex Crankshaft at GGCRACING.

Product Details

Product Description

About Callies

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

Callies LS Apex 4340 Forged Crankshaft - 4.000" Stroke

Boost the performance of your GM LS-Series engine with the Callies LS Apex 4340 Forged Crankshaft. Built for extreme duty, this crankshaft delivers the strength and precision required for high-horsepower street and track applications.

Key Features:

  • 4340 Forged Steel: Offers superior strength and durability to withstand extreme engine loads.
  • 4.000" Stroke: A popular stroke choice for maximizing displacement and power in LS engines.
  • Internal Balance: Facilitates easier engine assembly and reduces vibration for smoother operation.
  • 58X Reluctor: Ensures compatibility with factory and aftermarket GM engine control units.
  • 1-Piece Rear Main Seal: Designed for a reliable, leak-free seal.
  • Forged Construction: Provides a significant strength advantage over cast cranks for boosted or high-RPM builds.

The Callies Apex series crankshafts are renowned for their quality and performance. This 4.000" stroke variant is a versatile option for naturally aspirated, supercharged, turbocharged, or nitrous-assisted LS engines. It's the foundation for a powerful and dependable engine build.

Achieve your performance goals with Callies quality. Find the LS Apex Crankshaft at GGCRACING.

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