What is the difference between standard and undersize bearings?

Standard size bearings are meant to be used with a crankshaft that is still at its original factory dimensions. If the crankshaft has been ground down (machined undersize) to remove damage or wear, you will need to use bearings that are sized to match the machined journal, such as 0.010 inch or 0.020 inch undersize.

What material are these ACL bearings made from?

These ACL Race Series bearings utilize a tri-metal material construction. This type of material is known for its excellent load-carrying capacity and durability, making it suitable for performance engine applications.

Do I need to buy anything else to install these bearings?

When installing main bearings, it's crucial to have assembly lubricant to coat the bearings and crankshaft journals before installation. You will also need a torque wrench to tighten the main caps to the manufacturer's specifications. Always refer to the service manual for the correct procedures and torque values.

Specifications

Brand: ACL
Part #: 5M2167HX-STD
UPC: 9315726273722

ACL Ford/Cosworth 2.0L (YB) Race Series Standard Size High Performance Main Bearing Set

Name: ACL Ford/Cosworth 2.0L (YB) Race Series Standard Size High Performance Main Bearing Set
Brand: ACL
SKU: acl-acl-ford-cosworth-2-0l-yb-race-series-standard-size-high-performance-main-be-t14-4328668
Price: 55.71 USD
Availability: BackOrder

$55.71

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Fits 1971-1974 Ford Pinto and Mercury Capri. ACL Race Series standard size main bearing set for high performance engines.

Key Features

Fits 1971-1974 Ford Pinto and Mercury Capri.
ACL Race Series main bearing set.
Designed for Ford/Cosworth 2.0L (YB) engines.
Standard size for use with factory-spec or undamaged crankshafts.
Features a tri-metal material construction for strength and durability.
High performance application bearing set.

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About this part

Product Details

Doing a rebuild on the engine of your 1971-1974 Ford Pinto or Mercury Capri? These ACL Race Series main bearings are a solid option for your 2.0L Cosworth YB engine. They are designed to handle the demands of performance applications, offering a well-built replacement for your stock bearings.

ACL has been making engine bearings for a long time, and this Race Series set is built with their experience in mind. They use a tri-metal material construction that's known for its strength and ability to handle higher loads and temperatures often found in performance builds. This set is standard size, meaning it's meant to be used with an undamaged, factory-spec crankshaft. If your crankshaft has been machined, you'll need to check for undersize bearings.

When you're putting an engine back together, the main bearings are critical for keeping the crankshaft properly supported and aligned. These ACL bearings are a popular choice for those looking to get their engine running right after a rebuild, especially when performance is a goal.