What does the +0.25mm sizing mean for these bearings?

The +0.25mm sizing indicates that these bearings are intended for a crankshaft that has been machined down by 0.25mm (approximately 0.010 inches) during an engine rebuild. This is a common practice to true up a worn or damaged crankshaft.

What is the XPC material used in these bearings?

The XPC material is a multi-layer composite developed by King Engine Bearings. It's known for its excellent wear resistance and ability to conform to the crankshaft, helping to maintain oil film thickness under demanding conditions.

Are these bearings suitable for a stock engine rebuild?

These bearings are specifically sized at +0.25mm, which means they are intended for a crankshaft that has already been machined to that size. They are generally used in performance or performance-oriented rebuilds where the crankshaft is being reconditioned.

Specifications

Brand: King Engine Bearings
Part #: CR4287XPC0.25
UPC: 611500630552

King Engine Bearings Honda B18C1/B18C5/16V (Size +0.25mm) Connecting Rod Bearing Set

Name: King Engine Bearings Honda B18C1/B18C5/16V (Size +0.25mm) Connecting Rod Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-honda-b18c1-b18c5-16v-size-0-25mm-conn-t14-769701
Price: 75.38 USD
Availability: BackOrder

$75.38

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King Engine Bearings Honda B18C1/B18C5/16V Connecting Rod Bearing Set (+0.25mm). These bearings are built to handle the demands of performance engines.

Key Features

This set is sized +0.25mm for use with a machined crankshaft.
Features King's XPC material, a multi-layer composite for improved wear resistance.
Includes a unique .0005 inch thick overlay for enhanced durability.
Designed for Honda B18C1 and B18C5 16-valve engines.

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About this part

Product Details

These King Engine Bearings are built with a unique .0005 inch thick overlay. This advanced overlay is designed to work with the bearing's babbit overlay, creating a strong and durable bearing surface that can handle the high loads and temperatures found in performance Honda B18C1 and B18C5 engines. This set is specifically sized at +0.25mm, meaning it's intended for crankshafts that have been machined down by that amount during a rebuild.

King uses a specialized manufacturing process to create their bearings, ensuring a well-built component that fits right. The XPC material is a multi-layer composite that offers excellent wear resistance and conformability, which helps to maintain oil film thickness under stress. This is crucial for preventing engine damage and ensuring longevity, especially when you're pushing your engine harder than stock.

If you're rebuilding the bottom end of your Honda B18C1 or B18C5, this set of connecting rod bearings is a solid option. They are designed to be a direct replacement for the stock bearings after the crankshaft has been machined to the +0.25mm size.