ACL Race Series Engine Bearings - 5M590HX-STD

If you're looking to push your Ford’s performance to the next level, the ACL Race Series Engine Bearings (part number 5M590HX-STD) are engineered specifically for high RPM applications. These bearings are designed with a unique combination of advanced metallurgy and precision engineering, ensuring they can handle the intense demands of performance driving while maintaining reliability and durability.

Key Features

• High-strength overlay plate with reduced thickness enhances fatigue resistance, making it ideal for those who push their engines hard.
• Hardened steel backs on all rod bearings provide superior support for the bearing lining and improve retention within the housing.
• Increased crush helps secure the bearings in place, ensuring they stay put during high-stress conditions.
• Flash plating has been eliminated from the back of the bearings, allowing for better heat transfer and maximizing grip between the bearings and their housing.
• Increased eccentricity compensates for bore distortion at high RPM, aiding in the formation of hydrodynamic oil films for better lubrication.
• 3/4 grooved main bearings optimize load-carrying surface area and enhance oil flow to the connecting rod bearings.
• Tight and consistent wall tolerances help maintain precise clearances, crucial for performance setups.
• Enlarged ID chamfers on bearing edges accommodate large fillet radii on performance crankshafts, ensuring a snug fit.

Specifications

• Size: STD
• Oil Clearance: +0.001" Extra
• Half Type: Identical Halves
• Material: Tri-metal Hardened Steel Backs
• Min Std Shaft Size: 2.2482 in / 57.104 mm
• Max Std Shaft Size: 2.249 in / 57.125 mm
• Min Std Tunnel Size: 2.4412 in / 62.006 mm
• Max Std Tunnel Size: 2.442 in / 62.027 mm
• Max Wall at Crown: 0.0952 in / 2.418 mm
• Max Overall Length: 0.885 in / 22.48 mm

Fitment

The 5M590HX-STD bearings are compatible with the following Ford models:

• Ford Explorer: 1995-2016
• Ford F-150: 1975-2022
• Ford Mustang: 1964-1973 & 1979-2022
• Ford Mustang GT: 2015-2022
• Ford Mustang II: 1974-1978

Customer Feedback

One Mustang GT owner shared, “I installed these ACL bearings when rebuilding my engine, and they fit perfectly. The added oil clearance made a noticeable difference in my engine's performance, especially at higher RPMs. I’m confident they’ll hold up during track days!”

Another F-150 enthusiast noted, “After swapping these bearings in my 2020 F-150, I’ve seen improved throttle response and less engine noise. They really make a difference when towing heavy loads.”

Upgrade your engine with the ACL Race Series Engine Bearings for a reliable and performance-driven experience. These bearings are not just a replacement; they’re a step towards unlocking your vehicle’s full potential.