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

The +0.25mm designation indicates that these bearings are intended for use when the crankshaft journals have been machined down by 0.25mm during an engine rebuild. This allows for a proper fit and oil clearance on a reground crankshaft.

What is the pmax black material?

The pmax black material refers to King's racing line bearings, which utilize a tri-metal construction. This design is intended to offer improved load capacity and wear resistance for performance-oriented engines.

Are these bearings suitable for a stock engine rebuild?

While these are part of King's racing line, they can be used in a stock engine rebuild if the crankshaft journals have been machined to the +0.25mm size. However, they are particularly well-suited for applications where increased durability and performance are desired.

Specifications

Brand: King Engine Bearings
Part #: CR4017XP0.25
UPC: 611500556395

King Engine Bearings Opel 1.8/2.0 X18/20Xe (Size +0.25mm) Connecting Rod Bearing Set

Name: King Engine Bearings Opel 1.8/2.0 X18/20Xe (Size +0.25mm) Connecting Rod Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-opel-1-8-2-0-x18-20xe-size-0-25mm-conn-t14-769494
Price: 80.67 USD
Availability: BackOrder

$80.67

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King Engine Bearings XP Series connecting rod bearing set for Opel 1.8/2.0 X18/20XE engines. Size +0.25mm.

Key Features

Fits 13+ vehicle make/model combinations.
This is a +0.25mm undersize connecting rod bearing set.
Features King's pmax black tri-metal racing material.
Designed for Opel 1.8/2.0 X18/20XE engines.
Well-built engine components from King Engine Bearings.

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About this part

Product Details

King Engine Bearings is known for making well-built engine components, and this XP Series connecting rod bearing set is a solid option for your Opel 1.8 or 2.0 X18/20XE engine rebuild. These are the pmax black racing line bearings, which are an upgrade over their standard AM race bearings. This set is specifically sized at +0.25mm, meaning they are meant for crankshaft journals that have been machined down by that amount during an engine overhaul.

These bearings are designed to handle the demands of performance applications, offering improved durability and performance compared to stock. The pmax black material is a tri-metal construction that King uses for their racing line, aiming for better load capacity and wear resistance. They fit a range of vehicles, including models like the Buick Skyhawk, Chevrolet Malibu, and Pontiac Sunbird, among others.