Nissan RB20 RB25 RB30 ACL Race Series main bearings 7M2394H-STD
Part number 7M2394H-STD (+0.001" extra clearance).
ACL Race Series main bearings.
Nissan - 2.0 2.5 3.0, 2.8D (RB20E, RB20S, RB20DE, RB20DET, RB25DE, RB25DET, RD28, RD28E, RD28T, RB30, RB30ET)