What does '0.025 Oversized' mean for these rod bearings?

This means the bearings are 0.025 inches smaller in diameter than standard size. They are intended for use when the engine's crankshaft rod journals have been machined down (ground) to this specific undersize during an engine rebuild to ensure proper fit and oil clearance.

Are these bearings suitable for a stock engine rebuild?

These are considered high-performance bearings with a specialized overlay material for improved wear resistance. While they can be used in a stock rebuild, they are particularly well-suited for engines that may see harder use or are being built for enhanced durability.

What is the typical lifespan of these bearings?

The lifespan of engine bearings depends heavily on proper installation, oil quality and maintenance, and driving conditions. ACL uses advanced materials and construction to promote longevity, but specific mileage cannot be guaranteed.

ACL 68-89 Nissan 1952cc/2187cc/2389cc 4cyl 0.025 Oversized High Performance Rod Bearing Set

Specifications

Brand: ACL
Part #: 4B1171H-.025
UPC: 9315726453162

ACL 68-89 Nissan 1952cc/2187cc/2389cc 4cyl 0.025 Oversized High Performance Rod Bearing Set

Name: ACL 68-89 Nissan 1952cc/2187cc/2389cc 4cyl 0.025 Oversized High Performance Rod Bearing Set
Brand: ACL
Price: 102.14 USD
Availability: InStock

$102.14

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ACL 68-89 Nissan 1952cc/2187cc/2389cc 4cyl 0.025 Oversized High Performance Rod Bearing Set. Get reliable engine performance with these high-performance bearings.

Key Features

Fits 1968-1989 Nissan 4-cylinder engines with 1952cc, 2187cc, or 2389cc displacement.
Set includes 0.025 inch undersize high-performance rod bearings.
Features a specialized overlay material for improved wear resistance.
Designed for engine rebuilds where crankshaft journals have been machined to a 0.025 inch undersize.
Suitable for various Nissan models including 200SX, 510, 620 Pickup, 720, D21, and Pathfinder.

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Will this fit your vehicle?

Product Details

When you're rebuilding an engine or just need to replace worn rod bearings, ACL offers a solid option. These are high-performance bearings, meaning they're built to handle more stress than stock. They're made with a special overlay material that's designed to be tough and resist wear, even under demanding conditions. Because these are 0.025 inch undersize, they're meant to be used when the crankshaft journals have been ground down to match this size during an engine rebuild. This ensures a proper fit and optimal oil clearance.

This set is designed to fit a wide range of Nissan 4-cylinder engines from the late 60s through the late 80s, covering displacements from 1952cc up to 2389cc. If you're working on a 1977-1983 200SX, a 1968-1973 or 1978-1981 510, or even a 1987 Pathfinder, these bearings should be the right fit for your project.