ACL Subaru EJ & FA20 Engines (WRX, STI, BRZ & Toyota 86)

• Conrod bearings – FA20 applications for BRZ (ZC6), Toyota 86 (ZN6) and WRX (VA).
• ACL Race conrod bearing sets – Subaru EJ20/EJ22/EJ25 with the 52mm journal.
• Main bearings – FA20 applications for BRZ (ZC6), Toyota 86 (ZN6) and WRX (VA).
• ACL Race main bearing sets – Subaru EJ20/EJ22/EJ25, thrust position 5.
• Browse the wider ACL Performance Engine Bearings range, or see all brands.

Identify your engine family first: EJ20, EJ22 and EJ25 sets are listed separately from FA20 sets. For EJ engines, confirm the conrod journal size (the ACL Race conrod sets here are for the 52mm journal) and the thrust position of your main bearings (the ACL Race main set here is thrust position 5). For FA20 engines, match the chassis code — ZC6 for the Subaru BRZ, ZN6 for the Toyota 86 and VA for the Subaru WRX.

Bearing sizing also matters. Check the size listed on the product page against your measured clearances and your machinist's recommendations, and confirm every fitment detail on the listing before ordering.

Fitting engine bearings is an internal engine job that requires the engine to be stripped to the shortblock, with clean, well-organised assembly conditions. You'll typically need workshop manual torque specifications and procedures, a means of measuring bearing clearance, assembly lubricant and new fasteners or gaskets where the manufacturer specifies replacement.

Installation by a professional is recommended. A qualified engine builder or workshop can measure your crankshaft journals and housing bores, select the correct bearing sizes and assemble the engine to specification.

Which engines does this collection cover?
Subaru EJ20, EJ22 and EJ25 engines, plus the FA20 fitted to the Subaru BRZ (ZC6), Toyota 86 (ZN6) and Subaru WRX (VA).

Are EJ and FA20 bearings interchangeable?
No. EJ and FA20 sets are listed separately, and you should order the set that matches your engine family and chassis code.

What does "52mm journal" or "thrust position 5" mean?
They are fitment identifiers for EJ engines — the conrod journal diameter and the location of the thrust bearing in the main bearing set. Match them to your engine before ordering.

Can I fit these myself?
Bearing replacement requires engine disassembly and accurate clearance measurement, so installation by a professional is recommended.