What does '.026 undersize' mean for these bearings?

This means the bearings are manufactured to be 0.026 inches smaller in diameter than standard size. They are intended for use with a crankshaft that has been machined down by the same amount to achieve the correct oil clearance and fit.

Are these bearings suitable for a daily driver or only for racing?

These bearings are part of King's pmax Black racing line, featuring a tri-metal construction designed for higher loads and temperatures. While they offer excellent durability, they are optimized for performance applications and may be more than necessary for a stock daily driver.

What is the difference between these and standard main bearings?

These are racing bearings with a tri-metal construction for improved strength and load capacity compared to standard bearings. They also come in a specific undersize (.026 inch) which requires a machined crankshaft, unlike standard bearings which are typically used with a factory-spec crankshaft.

Specifications

Brand: King Engine Bearings
Part #: MB5227XP.026
UPC: 611500608728

King Engine Bearings Mitsubishi 4G63/4G64 (Size .026) Crankshaft Main Bearings (Set of 5)

Name: King Engine Bearings Mitsubishi 4G63/4G64 (Size .026) Crankshaft Main Bearings (Set of 5)
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-mitsubishi-4g63-4g64-size-026-cranksha-t14-183461
Price: 134.12 USD
Availability: BackOrder

$134.12

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Fits 1990-1997 Eagle Talon. King Engine Bearings Mitsubishi 4G63/4G64 crankshaft main bearings (.026 undersize) are a racing line set designed for improved performance.

Key Features

Fits 1990-1997 Eagle Talon.
Set includes five crankshaft main bearings.
These bearings are .026 inch undersize.
Features King's pmax Black racing line tri-metal construction.
Designed for Mitsubishi 4G63 and 4G64 engines.

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About this part

Product Details

If you're rebuilding the engine in your 1990-1997 Eagle Talon, especially if you're working with a 4G63 or 4G64 engine, getting the crankshaft main bearings right is crucial. These King Engine Bearings are part of their pmax Black racing line, meaning they're built with a tri-metal construction for demanding applications. They come in a set of five and are .026 inch undersize, which is important to note if you're machining your crankshaft.

The pmax Black series is King's top-tier racing bearing. The tri-metal material offers excellent strength and durability, designed to handle higher loads and temperatures often found in performance builds. Because these are .026 undersize, they are intended to be used with a crankshaft that has been machined down by that amount to ensure a proper fit and oil clearance. This set is specifically for the main bearings, which support the crankshaft in the engine block.