What does '.25 Oversized' mean for these rod bearings?

This means the bearings are manufactured to be 0.25mm larger in diameter than standard size. They are intended for use when the engine's crankshaft journals have been machined down by 0.25mm during an engine rebuild to ensure a proper fit and optimal oil clearance.

What is the benefit of the CT-1 coating?

The CT-1 coating is a dry-film lubricant that helps reduce friction and wear. It's particularly beneficial during the engine's break-in period and under high-stress operating conditions, helping to protect both the bearing and the crankshaft.

Are these bearings suitable for a stock RB engine rebuild?

While these are high-performance bearings, they are designed for engines that have had their crankshaft journals machined to the .25mm undersize. If your crankshaft is still standard size, you would need standard size bearings. These are best suited for performance builds or rebuilds where the crankshaft has been reconditioned.

ACL Nissan RB25DETT/RB26DETT 0.25 Oversized High Performance Rod Bearing Set - CT-1 Coated

Specifications

Brand: ACL
Part #: 6B2960HC-.25
UPC: 9315726458280

ACL Nissan RB25DETT/RB26DETT 0.25 Oversized High Performance Rod Bearing Set - CT-1 Coated

Name: ACL Nissan RB25DETT/RB26DETT 0.25 Oversized High Performance Rod Bearing Set - CT-1 Coated
Brand: ACL
Price: 104.50 USD
Availability: InStock

$104.50

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ACL Nissan RB25DETT/RB26DETT .25 oversize rod bearings with CT-1 coating. Built for high-performance engines.

Key Features

Fits 1991-1996, 1999-2002 INFINITI G20, 1995-1998 Nissan 200SX, 1991-1993 Nissan NX, and 1991-1994, 1998-2001 Nissan Sentra.
Designed for Nissan RB25DETT and RB26DETT performance engines.
Bearings are .25mm (.010 inch) oversized for use with machined crankshaft journals.
Features ACL's CT-1 dry-film lubricant coating to reduce friction and wear.
Well-built for high-performance applications and engine rebuilds.

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Will this fit your vehicle?

Product Details

You get a full set of high-performance rod bearings in this kit, which means one box handles a critical part of your engine rebuild. These ACL bearings are built for the demanding RB25DETT and RB26DETT engines, often found in performance Nissan and Infiniti models. They are .25mm (.010 inch) oversized, designed to be used when the crankshaft journals have been machined down to match this size during an engine rebuild. This ensures a proper, snug fit and optimal oil clearance for engines that are pushed hard.

The CT-1 coating on these bearings is a notable feature. It's a dry-film lubricant that helps reduce friction and wear, especially during the critical break-in period and under high-stress conditions. This coating helps protect the bearing surface and the crankshaft journal, contributing to longer engine life. ACL has a solid reputation for making well-built engine components, and these bearings are no exception for anyone rebuilding a performance RB engine.

When rebuilding an RB engine, especially one that will see track time or aggressive street use, using bearings that are precisely sized and coated for protection is key. These ACL bearings are a popular choice for enthusiasts looking to ensure their engine internals can handle the power and stress of a performance build. Make sure your crankshaft journals have been machined to the correct .25mm undersize before installing these bearings.