Main Bearings

Non-Race Bearings are hard 2-layer bearings that are made for stock engines to run hundreds of thousands of miles on without needing to be replaced. They are great for longeivty in stock engines, but their hardness makes them less forgiving in race applications. 

Race Bearings are softer 3-layer bearings that are designed to absorb the shock of race applications.

The Size of the bearing will depend on 2 things: 1.) if your crank was machined, or 2.) if your engine builder wants more or less oil clearance than a standard bearing will provide. 

If you want to learn more about how bearing attributes influence bearing selection, check out the Bearing section of Jay's Bottom End Buyers Guide here...

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  1. $47.51
    In Stock
    Specs
    Specs
    Bearing Category Main Bearings
    Bearing Type Non-Race Bearing
    Bearing Size STD (Standard)
  2. ACL Race Main Bearings Set STD Subaru WRX EJ205 EJ255 STi EJ257 Flange #5
    3 STAFF MEMBERS OWN THIS
    Jay Meagher
    Jay Meagher
    Trevor Harmon
    Trevor Harmon
    Russ Oldfield
    Russ Oldfield
    Russ Oldfield
    3
    $124.50
    In Stock
    Specs
    Specs
    Bearing Category Main Bearings
    Bearing Type Race Bearing
    Bearing Size STD (Standard)
  3. ACL Race Main Bearings Set +0.025mm Subaru WRX EJ205 EJ255 STi EJ257 Flange #5
    Sale
    Regular Price $124.50 Special Price $55.64
    In Stock
    Specs
    Specs
    Bearing Category Main Bearings
    Bearing Type Race Bearing
    Bearing Size 0.001in / 0.025mm
  4. $124.50
    In Stock
    Specs
    Specs
    Bearing Category Main Bearings
    Bearing Type Race Bearing
    Bearing Size 0.010in / 0.25mm
  5. $72.13
    In Stock
    Specs
    Specs
    Bearing Category Main Bearings
    Bearing Type Non-Race Bearing
    Bearing Size STD (Standard)
  6. $139.20
    In Stock
    Specs
    Specs
    Bearing Category Main Bearings
    Bearing Type Race Bearing
    Bearing Size HX (Extra Oil Clearance)
  7. $112.52
    In Stock
    Specs
    Specs
    Bearing Category Main Bearings
    Bearing Type Race Bearing
    Bearing Size HX (Extra Oil Clearance)
  8. $114.91
    In Stock
    Specs
    Specs
    Bearing Category Main Bearings
    Bearing Type Race Bearing
    Bearing Size HX (Extra Oil Clearance)
  9. $130.77
    In Stock
    Specs
    Specs
    Bearing Category Main Bearings
    Bearing Type Race Bearing
    Bearing Size STD (Standard)
  10. $143.29
    In Stock
    Specs
    Specs
    Bearing Category Main Bearings
    Bearing Type Race Bearing
    Bearing Size STD (Standard)
  11. $100.33
    In Stock
    Specs
    Specs
    Bearing Category Main Bearings
    Bearing Type Race Bearing
    Bearing Size HX (Extra Oil Clearance)
  12. $97.63
    In Stock
    Specs
    Specs
    Bearing Category Main Bearings
    Bearing Type Race Bearing
    Bearing Size HX (Extra Oil Clearance)
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