Feature●ACL Performance Series STANDARD size connecting rod bearings and main bearings fit: EJ15, EJ16, EJ18, EJ20, EJ22, and EJ25 4-cylinder engines with a 52mm rod journal size (at STANDARD) and thrust bearing in #3 position only.●Boost Projects Custom Bearing Kit Includes: One Set of Rod Bearings (suits 52 mm journal size) & One Set of Main Bearings (for thrust in #3 position)●Size: Standard●Made in AustraliaDescription ACL Race Series performance engine bearings are manufactured to exacting tolerances with particular attention paid to wall thickness accuracy. This ensures reliable fit and helps maintain consistent clearances.