What does the extra 0.001 inch clearance mean for my engine?

The extra 0.001 inch clearance allows for a slightly larger oil film between the bearing and the crankshaft journal. This can help improve oil flow and cooling, which is beneficial for engines under higher stress or RPMs.

Do these bearings require crankshaft machining?

These are standard size bearings, meaning they are designed to fit on a factory-spec crankshaft journal. However, if your crankshaft journals have any damage or wear, they may need to be ground to an undersize, requiring different bearings.

What is the benefit of using performance rod bearings?

Performance rod bearings are typically made with stronger materials and tighter tolerances to withstand higher loads and temperatures than stock bearings. They are a good choice for rebuilt or modified engines that will be subjected to more stress.

Specifications

Brand: ACL
Part #: 4B8050HX-STD
UPC: 9315726275948

ACL Mitsubishi 4G94 2.0L Std Size High Performance Rod Bearing Set w/ 0.001in Xtra Clearance

Name: ACL Mitsubishi 4G94 2.0L Std Size High Performance Rod Bearing Set w/ 0.001in Xtra Clearance
Brand: ACL
SKU: acl-acl-mitsubishi-4g94-2-0l-std-size-high-performance-rod-bearing-set-w-0-001in-t14-250171
Price: 89.97 USD
Availability: BackOrder

$89.97

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Fits 2005-2007 Mitsubishi Lancer. ACL high performance rod bearings with 0.001in extra clearance for improved oil flow.

Key Features

Fits 2005-2007 Mitsubishi Lancer.
ACL high performance rod bearing set for the 4G94 2.0L engine.
Features 0.001 inch extra clearance for improved oil flow.
Standard size bearings designed for direct fitment on factory crankshaft journals.
Well-built for performance applications and increased engine stress.

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About this part

Product Details

Doing an engine rebuild on your 2005-2007 Mitsubishi Lancer? If you're looking to get the most out of your 4G94 2.0L engine, especially if you're planning on pushing it a bit harder than stock, a good set of performance rod bearings is a smart move. These ACL bearings are built to handle more stress than factory ones, and they come with a little extra clearance to help keep things well-lubricated under demanding conditions.

ACL has been making engine bearings for a long time, and these are well-built for performance applications. The 'HX' in the part number signifies that these bearings have 0.001 inches of extra clearance compared to standard sizes. This might not sound like much, but it can make a notable difference in oil flow, which is crucial for keeping your connecting rods and crankshaft cool and protected, especially when you've got higher horsepower or RPMs involved. They are a standard size, meaning they're meant to fit on a factory-spec crankshaft journal without needing any machining, as long as the journal is in good shape.

When you're putting in new rod bearings, it's always a good idea to check the condition of your crankshaft journals. If they have any nicks or scoring, you might need to have them ground down to a specific undersize and then use corresponding undersize bearings. Since these are standard size, they're designed to be a direct fit onto a clean, undamaged crankshaft. Make sure to follow the manufacturer's lubrication and installation procedures carefully for best results.