ACL Race Series Subaru FA20 standard-size main bearing set with +.002in OD offers OEM journal sizing while specifying an outer diameter increase of +.002in to accommodate particular installation or machining needs. The set is intended for FA20 engine rebuilds where that outer diameter tolerance is required, providing a documented dimensional option without extrapolating additional performance claims.
ACL Subaru FA20 Standard Size Main Bearing Set w/ +.002in OD