
Description
The ACL Race Series Connecting Rod Bearing Set (Part No. 1B2500H-STD-1) is engineered for the Nissan GT-R R35 VR38DETT, delivering maximum strength and durability under high-RPM conditions. Featuring advanced tri-metal construction and consistent wall tolerances, ACL rod bearings are trusted by professional engine builders for their reliability and precision fit.
Key Features and Benefits
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High-performance tri-metal construction
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Designed to withstand extreme RPM conditions
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High-strength overlay plate with reduced thickness for fatigue resistance
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Hardened steel backs for bearing support and retention
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Increased crush for improved housing fitment
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Flash plating eliminated for better heat transfer and housing grip
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Optimized eccentricity for oil film stability at high RPM
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Consistent wall tolerances for accurate clearances
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Enlarged ID chamfers for compatibility with performance crankshafts
Technical Specs / Material Info
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Size: STD-1
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Tunnel (mm): 59.000 – 59.013
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Shaft (mm): 55.943 – 55.961
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Max. Length: 19 mm
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Half Type: Identical halves
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Note: Set contains one pair of bearings (order 6 pairs for full engine set)
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Weight: 0.05 kg
Vehicle Compatibility
Compatible with the following:
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Nissan GT-R R35 VR38DETT DOHC 24v Twin Turbo
Package Contents
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One pair of ACL Race Series connecting rod bearings
(6 pairs required for a complete engine set)
Installation Notes
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Professional installation recommended
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Verify correct bearing grade selection before assembly
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Ensure proper lubrication and clearance during installation
Emissions & Compliance
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Not applicable (non-emissions-related component)
Documentation
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Technical Bulletin: Grade selection
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