What is the advantage of extra oil clearance?

Extra oil clearance allows for a larger volume of oil to flow between the bearing and the crankshaft. This helps to carry away more heat and can provide better lubrication under high-stress conditions, which is beneficial for performance or racing engines.

Are these bearings suitable for a stock engine rebuild?

While these are performance-oriented bearings with extra oil clearance, they are a standard size and can be used in a stock engine rebuild if you are looking for a well-built component. However, they are particularly well-suited for modified or high-performance applications.

What does 'B6/BP/BP-T' refer to in the product name?

These letters refer to specific engine codes used by Mazda. B6 and BP are common naturally aspirated engine families, while BP-T typically indicates a turbocharged version of the BP engine. This bearing set is designed to fit engines with these specific designations.

ACL Mazda 4 B6/BP/BP-T Race Series Stnd Size High Performance w/Extra Oil Clearance Main Bearing Set

Specifications

Brand: ACL
Part #: 5M8353HX-STD
UPC: 9315726152904

ACL Mazda 4 B6/BP/BP-T Race Series Stnd Size High Performance w/Extra Oil Clearance Main Bearing Set

Name: ACL Mazda 4 B6/BP/BP-T Race Series Stnd Size High Performance w/Extra Oil Clearance Main Bearing Set
Brand: ACL
SKU: acl-acl-mazda-4-b6-bp-bp-t-race-series-stnd-size-high-performance-w-extra-oil-cl-t14-4354957
Price: 79.86 USD
Availability: InStock

$79.86

In Stock

ACL Mazda 4 B6/BP/BP-T Race Series Stnd Size High Performance w/Extra Oil Clearance Main Bearing Set. Built for demanding engine builds.

Key Features

Fits Kia Rio (2001-2005), Sephia (1994-1997), Mazda 323 (1986-1994), MX-3 (1992-1995), Miata (1990-1997, 1999-2005), Protege (1990-2001), and Mercury Capri (1991-1994).
Standard size bearings fit stock crankshaft journals.
Features extra oil clearance for improved oil flow and heat management in high-performance engines.
Designed for B6, BP, and BP-T engine applications.
ACL Race Series construction for demanding engine builds.

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Will this fit your vehicle?

Product Details

You get a full set of main bearings with extra oil clearance in this kit, which means one box handles a critical part of your engine rebuild. These ACL Race Series bearings are built for performance applications where tighter tolerances aren't always the goal. The extra clearance helps manage oil flow and heat, especially important when you're pushing an engine harder than stock.

ACL has been making engine bearings for a long time, and this set is a solid option for anyone rebuilding a B6, BP, or BP-T engine. They're a standard size, so they'll fit your stock crankshaft journals, but the design is updated to handle more stress. If you're building a naturally aspirated or turbocharged engine that needs to perform reliably under load, these bearings are a good choice to consider for your build.

When you're putting an engine back together, especially one that's going to see track time or hard use, using well-built internal components like these bearings is key. Make sure to follow the manufacturer's installation instructions carefully, as proper oil clearance and bearing seating are crucial for engine longevity.