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ACL Aluminum Block V8 Main Bearing Set for Ford 5.4L DOHC Supercharged, STD Size - 5M5645HX
ACL Aluminum Block V8 Main Bearing Set for Ford 5.4L DOHC Supercharged, STD Size - 5M5645HX - Image 2

ACL 5M5645HX Race Series Engine Bearings

When it comes to maximizing your engine's performance, the ACL 5M5645HX Race Series Engine Bearings are engineered for serious enthusiasts who demand reliability and strength. These high-performance trimetal bearings are designed to withstand the rigors of higher RPM conditions, making them an ideal choice for a variety of popular 4, 6, and 8-cylinder applications. Whether you're pushing your Ford Mustang GT to the limit or fine-tuning your Ford GT, these bearings are built to meet the demands of your engine.

Features

  • High-strength overlay plate with reduced thickness enhances fatigue properties, ensuring durability under pressure.
  • Hardened steel backs on all rod bearings improve support and retention in the housing, giving you peace of mind during high-performance runs.
  • Increased crush design improves bearing retention, so you can focus on the road ahead.
  • Elimination of flash plating on the back of the bearings enhances heat transfer, optimizing performance and grip within the housing.
  • Increased eccentricity compensates for bore distortion at high RPMs, promoting effective hydrodynamic oil films.
  • 3/4 grooved main bearings optimize bearing load-carrying surface area and oil flow to the conrod bearings, crucial for high-output builds.
  • Tight, consistent wall tolerances help maintain precise clearances, which is essential for performance tuning.
  • Enlarged ID chamfers accommodate large fillet radii on performance crankshafts, ensuring a perfect fit and smooth operation.

Specifications

  • Size Options: STD, .025, .25
  • Oil Clearance: Standard
  • Half Type: Identical Halves
  • Material: Tri-metal Hardened Steel Backs
  • Min Std Shaft Size: 2.6567" / 67.480 mm
  • Max Std Shaft Size: 2.6567" / 67.480 mm
  • Min Std Tunnel Size: 2.8504" / 72.400 mm
  • Max Std Tunnel Size: 2.8512" / 72.421 mm
  • Max Wall at Crown: 0.0962" / 2.443 mm
  • Max Overall Length: 0.0962" / 2.443 mm

Product Fitment

  • Ford GT: 2005-2006 & 2017-2020
  • Ford Mustang: 1964-1973 & 1979-2022
  • Ford Mustang GT: 2015-2022
  • Ford Mustang II: 1974-1978

Customer Feedback

Ford Mustang GT owners have reported significant improvements in engine responsiveness after upgrading to the ACL 5M5645HX bearings. One customer noted, "Installed these on my 2021 Mustang GT, and they provided a noticeable increase in throttle response and stability at high RPMs. Highly recommend for anyone looking to push their engine further!"

Another Ford GT owner mentioned, "The fitment was spot-on for my 2017 model. These bearings held up great during my track days, and I felt confident in the engine's performance."

Other Part Numbers:
ACL #acl5M5645HX

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
2005-2006, 2017-2020
 Ford GT
1964-1973, 1979-2022
 Ford Mustang
2015-2022
 Ford Mustang GT
1974-1978
 Ford Mustang II

ACL Banner

Who is ACL?

ACL is a company that specializes in manufacturing and distributing high-quality engine bearings that have played a key role in the Australian automotive parts market. 

Based in Launceston, Tasmania, Australia, the company has been in the business for more than 70 years and has become the leading brand when it comes to its market segment.

Throughout the years, ACL has consistently provided top quality products and has become the equipment supplier of multiple Automotive brands such as Lancia, Mazda, Mini, Mitsubishi, Nissan, Peugeot, Subaru, Toyota, Volvo, Suzuki, Renault, SAAB, and more.  ACL also provides a replacement product range used by the aftermarket industry.

The company ensures that it maintains its high level of standard by employing manufacturing processes that are ISO certified. They also use the industry’s most advanced tooling equipment and designing software that allows them to create products that are superior in quality. ACL has been known worldwide to create bearings that are durable, innovative, and precise.

ACL also offers bearing used for high-performance applications. The company has been involved in motorsport racing since the 1960s and has manufactured bearings used in Brabham Formula 1. Today, their products are being used in different racing disciplines such as the Australian Supercar Championship, Drag racing, Driftings, and Rally.

Purchase ACL Bearings at Vivid Racing

Engine Bearings are a critical component of a vehicle and should not be overlooked. If you want to make sure that what you get is something you could rely on, then ACL is the brand for you. With over 200 engine applications, whether it’s an American, Australian, European, or Asian made vehicle, ACL got you covered. Visit Vivid Racing and check out their list of bearings that would fit your specific needs.

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