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ARP EJ20 & EJ25 Main Block Bolt Kit — Fits 1990-2012 Subaru EJ Engines
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ARP EJ20 & EJ25 Main Block Bolt Kit — Fits 1990-2012 Subaru EJ Engines
ARP

ARP EJ20 & EJ25 Main Block Bolt Kit — Fits 1990-2012 Subaru EJ Engines

SKU: ARP260-5401

About ARP ARP (Automotive Racing Products) makes the strongest fasteners ...Read more

Price:
$508.99
5080 ENTRIES10X
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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 ARP

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

Watch in action

Superior Bottom End Stability for EJ Engines

The ARP Subaru WRX EJ20 & EJ25 Block Bolts (Part #260-5401) are designed to provide the ultimate in bottom-end security for your Subaru EJ engine. In high-performance applications, the block halves and main bearing caps are subjected to immense stress. These ARP bolts ensure that your engine block remains rigid, preventing cap walk and maintaining proper bearing clearances.

Why Upgrade Your Block Bolts?

  • Enhanced Rigidity: Provides superior clamping force to keep the block halves and main caps perfectly aligned.
  • Premium Material: Manufactured from 8740 chromoly steel, offering high tensile strength and durability.
  • Consistent Torque: Rolled threads provide consistent and accurate torque readings during assembly.
  • Engine Longevity: Helps prevent main bearing failure and block distortion under high-boost or high-RPM conditions.

This kit is a must-have for any serious engine build, whether you are running a stock turbo or a high-horsepower custom setup. By upgrading to ARP, you are ensuring that your engine's bottom end can handle the increased power and torque without compromising structural integrity. These bolts are designed to replace the factory hardware, providing a direct-fit upgrade that offers peace of mind for every mile driven. Perfect for the EJ20 and EJ25 platforms, this kit is the foundation of a reliable, high-performance engine. Don't let weak fasteners limit your build's potential. Upgrade to the industry standard in engine hardware. For high-quality performance parts, look no further than GGCRACING.

…and 12 additional fitments. Contact us to confirm yours.

About ARP

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

Watch in action

Superior Bottom End Stability for EJ Engines

The ARP Subaru WRX EJ20 & EJ25 Block Bolts (Part #260-5401) are designed to provide the ultimate in bottom-end security for your Subaru EJ engine. In high-performance applications, the block halves and main bearing caps are subjected to immense stress. These ARP bolts ensure that your engine block remains rigid, preventing cap walk and maintaining proper bearing clearances.

Why Upgrade Your Block Bolts?

  • Enhanced Rigidity: Provides superior clamping force to keep the block halves and main caps perfectly aligned.
  • Premium Material: Manufactured from 8740 chromoly steel, offering high tensile strength and durability.
  • Consistent Torque: Rolled threads provide consistent and accurate torque readings during assembly.
  • Engine Longevity: Helps prevent main bearing failure and block distortion under high-boost or high-RPM conditions.

This kit is a must-have for any serious engine build, whether you are running a stock turbo or a high-horsepower custom setup. By upgrading to ARP, you are ensuring that your engine's bottom end can handle the increased power and torque without compromising structural integrity. These bolts are designed to replace the factory hardware, providing a direct-fit upgrade that offers peace of mind for every mile driven. Perfect for the EJ20 and EJ25 platforms, this kit is the foundation of a reliable, high-performance engine. Don't let weak fasteners limit your build's potential. Upgrade to the industry standard in engine hardware. For high-quality performance parts, look no further than GGCRACING.

…and 12 additional fitments. Contact us to confirm yours.

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