ACL Race Series Main Bearing Set 0.025 Oversize CT-1 Coated — Fits 1995-2005 Subaru EJ Engines

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SKU: ACL5M8309HC-.025

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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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About ACL

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

ACL Race Series CT-1 Coated Main Bearings (0.025 Oversize)

For engine builders tackling a crankshaft grind, the ACL Race Series 0.025 Oversized Main Bearing Set provides the perfect fit for your Subaru EJ20, EJ22, or EJ25. These bearings feature the advanced CT-1 coating, which offers superior dry-film lubrication and protection during critical startup phases and high-load scenarios.

Why Choose CT-1 Coated Bearings?

  • CT-1 Coating: Advanced surface treatment reduces friction and improves heat dissipation.
  • 0.025 Oversize: Engineered for precision-machined crankshafts requiring additional clearance.
  • #5 Thrust Compatibility: Designed specifically for Subaru blocks with the #5 thrust position.
  • Race-Proven Material: High-strength tri-metal construction for maximum load-bearing capacity.
  • Improved Oil Retention: Optimized surface finish promotes consistent oil film stability.

The CT-1 coating acts as a sacrificial layer that protects the bearing surface from scuffing and seizure. This is particularly beneficial for high-boost turbo applications or track-focused builds where oil temperatures can fluctuate rapidly. Whether you are building a street-legal powerhouse or a dedicated race machine, these oversized bearings ensure that your rotating assembly remains protected under the most demanding conditions. Ensure your crankshaft is measured accurately by a professional machine shop to match these 0.025 oversized shells. Elevate your engine's longevity with premium parts from GGCRACING.

About ACL

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

ACL Race Series CT-1 Coated Main Bearings (0.025 Oversize)

For engine builders tackling a crankshaft grind, the ACL Race Series 0.025 Oversized Main Bearing Set provides the perfect fit for your Subaru EJ20, EJ22, or EJ25. These bearings feature the advanced CT-1 coating, which offers superior dry-film lubrication and protection during critical startup phases and high-load scenarios.

Why Choose CT-1 Coated Bearings?

  • CT-1 Coating: Advanced surface treatment reduces friction and improves heat dissipation.
  • 0.025 Oversize: Engineered for precision-machined crankshafts requiring additional clearance.
  • #5 Thrust Compatibility: Designed specifically for Subaru blocks with the #5 thrust position.
  • Race-Proven Material: High-strength tri-metal construction for maximum load-bearing capacity.
  • Improved Oil Retention: Optimized surface finish promotes consistent oil film stability.

The CT-1 coating acts as a sacrificial layer that protects the bearing surface from scuffing and seizure. This is particularly beneficial for high-boost turbo applications or track-focused builds where oil temperatures can fluctuate rapidly. Whether you are building a street-legal powerhouse or a dedicated race machine, these oversized bearings ensure that your rotating assembly remains protected under the most demanding conditions. Ensure your crankshaft is measured accurately by a professional machine shop to match these 0.025 oversized shells. Elevate your engine's longevity with premium parts from GGCRACING.

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