What does 'standard size' mean for these bearings?

Standard size bearings are meant to be installed on a crankshaft that is still within the manufacturer's original factory specifications. If your crankshaft has been machined undersize due to wear or damage, you would need a different bearing size.

What is the benefit of a high-performance main bearing set?

High-performance bearings are typically made with more durable materials and specialized overlays. This allows them to better withstand the increased heat and stress found in performance engines, helping to maintain proper oil clearance and prevent premature wear.

Do these bearings come with installation instructions?

While these bearings are designed as a direct replacement, it is always recommended to refer to the manufacturer's installation instructions or a reputable service manual for the correct procedures and torque specifications.

1979 Ford Mustang Main Bearings | ACL 5M1117HX-STD

Name: ACL Ford 2.3L Single Spark Plug Standard Size High Performance Main Bearing Set
Brand: ACL
SKU: acl-acl-ford-2-3l-single-spark-plug-standard-size-high-performance-main-bearing--t14-4398402
Price: 125.52 USD
Availability: BackOrder

ACL Ford 2.3L Single Spark Plug Standard Size High Performance Main Bearing Set

$125.52

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1979 Ford Mustang. ACL high performance main bearing set for the 2.3L engine. Standard size.

Key Features

Fits 1979 Ford Mustang.
Designed for the Ford 2.3L engine.
Standard size for direct replacement.
High-performance construction for increased durability.
Specialized overlay material helps resist wear and maintain oil clearance.

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Product Details

When you're rebuilding or refreshing the engine in your 1979 Ford Mustang with the 2.3L engine, the main bearings are a critical component. These ACL high-performance main bearings are built to handle more stress than stock bearings, making them a solid choice for a performance build or a robust daily driver. They are designed to be a direct replacement for your original equipment, ensuring a proper fit during installation.

ACL uses a specialized overlay material on these bearings, which is known for its durability and ability to maintain its shape under high loads and temperatures. This means they can better resist wear and maintain proper oil clearance, which is essential for engine longevity, especially when you're pushing your 2.3L engine a bit harder. The standard size ensures they're a direct swap for your existing bearings, assuming your crankshaft journals are still within factory specifications.

If your crankshaft has been machined or is out of tolerance, you'll need to select a different bearing size. Always check your crankshaft journal dimensions before ordering bearings to ensure you get the correct size for your rebuild.