ACL Race Series Conrod Bearing Set (0.25mm / 0.010" Undersize), Nissan RB20 / RB25 / RB26 / RB30 — 6B2960H-.25

Precision undersize fitment and ultimate fatigue resistance for high-boost Nissan RB builds. When machining a ground crankshaft on a high-output Nissan RB-series engine, maintaining exact oil clearances is essential for bearing life under extreme cylinder pressure. The ACL Race Series Conrod Bearing Set (6B2960H-.25) features a 0.25mm (0.010") undersize specification, specifically engineered to withstand sustained high RPM, severe boost levels, and motorsport punishment.

Vehicle & Engine Applications

Designed for ground crank journals requiring a 0.25mm (0.010") undersize on Nissan 6-cylinder engines:

• Nissan RB20DE / RB20DET (2.0L Inline-6)
• Nissan RB25DE / RB25DET / RB25DET NEO (2.5L Inline-6)
• Nissan RB26DETT (2.6L Twin Turbo Inline-6)
• Nissan RB30E / RB30ET / RB25/30 & RB26/30 Hybrids (3.0L Inline-6)
• Common Fitments: Nissan Skyline (R32, R33, R34 GT-R, GTS-t, GT-T), Stagea (WC34), Cefiro (A31), Laurel (C33, C34, C35), and Patrol (GQ RB30).

Key Specifications

• Part Number: 6B2960H-.25 (6B2960H-0.25 / 6B2960H-010)
• Crankshaft Undersize: 0.25 mm / 0.010 in
• Bearing Type: Big End / Conrod Bearing Set
• Material: High-performance Tri-metal construction

Kit Contents

• 1x Complete Engine Set of ACL Race Series Conrod Bearings (0.25mm Undersize)

Rebuilding your Nissan RB bottom end? Drop our team a message if you need assistance checking journal dimensions or matching main bearings for your build.