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ACL Ford 221/255/260/289/302 V8 Windsor Race Series Con Rod Bearing Set STD - 1B634H-STD

ACL Race Series Engine Bearings - Part Number 1B634H-STD

If you're a proud owner of a performance-oriented vehicle, you know that the heart of your engine is its bearings. The ACL Race Series Engine Bearings (1B634H-STD) are engineered to meet the demands of high-performance applications, providing a robust solution for your engine rebuild or upgrade. Designed for popular 4, 6, and 8-cylinder engines, these bearings are built to withstand the rigors of high RPM driving, ensuring your engine runs smoothly and efficiently.

Fitment

The 1B634H-STD bearings are compatible with a range of vehicles, making them a versatile choice for enthusiasts looking to enhance their engine's performance. Always verify fitment based on your specific year, make, and model to ensure optimal performance.

Key Features

  • High-strength overlay plate with reduced thickness enhances fatigue resistance, ensuring longevity under extreme conditions.
  • Hardened steel backs on all rod bearings provide superior support for the bearing lining, improving retention within the housing.
  • Increased crush enhances bearing retention, keeping everything securely in place during high-stress situations.
  • Elimination of flash plating on the back of the bearings promotes better heat transfer and maximizes 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 oil flow to the conrod bearings, enhancing overall performance.
  • Tight, consistent wall tolerances ensure you maintain precise clearances for optimal engine function.
  • Enlarged ID chamfers on bearing edges accommodate large fillet radii on performance crankshafts, making installation smoother.

Specifications

  • Size: STD, 01, 09, 10, 11, 20
  • Oil Clearance: Standard
  • Half Type: Identical Halves
  • Material: Tri-metal Hardened Steel Backs
  • Min Std Shaft Size: 2.1228" / 53.919 mm
  • Max Std Shaft Size: 2.1236" / 53.939 mm
  • Min Std Tunnel Size: 2.2390" / 56.871 mm
  • Max Std Tunnel Size: 2.2398" / 56.891 mm
  • Max Wall at Crown: 0.0574" / 1.458 mm
  • Max Overall Length: 0.726" / 18.44 mm

Customer Feedback

One 2021 WRX owner shared, "After installing the ACL 1B634H-STD bearings during my engine rebuild, I noticed a significant improvement in my oil pressure at high RPMs. The fit was perfect, and they held up beautifully during my last track day!"

Another 2018 Mustang GT owner commented, "These bearings are a must-have for anyone pushing their engine to the limit. I’ve run them through multiple autocross events, and they’ve performed flawlessly."

Upgrade your engine's reliability and performance with the ACL Race Series Engine Bearings 1B634H-STD — a smart choice for dedicated drivers looking to push their vehicles to the next level.

Other Part Numbers:
ACL #acl1B634H-STD

Proposition 65

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

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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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