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This ACL GTiR standard-size main bearing set for Nissan SR20DE/DET includes a five upper-oil-hole configuration to enhance oil flow in high-demand engines. Offered as a high-performance replacement, these bearings restore proper clearances and lubrication paths for GTiR applications where the extra oiling holes support improved oil delivery to critical main journal areas during aggressive operation.
ACL Nissan SR20DE/DET GTiR Standard Size High Performance Main Bearing Set - 5 oil holes in upper
