ACL 5M5647HX-STD Race Series Engine Bearings

If you're looking to push your engine's performance to the next level, the ACL 5M5647HX-STD Race Series Engine Bearings are engineered for serious enthusiasts who demand reliability and strength. These bearings are specifically designed to handle the rigors of high RPM conditions, making them an ideal choice for 4, 6, and 8-cylinder applications. Whether you're building a street monster or a track-ready machine, these bearings will help you maintain optimal performance.

Fitment

The ACL 5M5647HX-STD bearings are compatible with various popular models, ensuring a direct fit for your performance upgrades. Always verify your specific year, make, and model before installation to ensure the perfect match.

Key Features

• High-strength overlay plate with reduced thickness enhances fatigue resistance, allowing your engine to rev higher without worry.
• Hardened steel backs on all rod bearings provide superior support and retention, ensuring they stay put even under extreme conditions.
• Increased crush for improved bearing retention means these bearings will hold up better during intense driving.
• Flash plating elimination on the back of the bearings enhances heat transfer, maximizing grip between the bearing and housing.
• Increased eccentricity compensates for bore distortion at high RPM, aiding in the formation of hydrodynamic oil films for smoother operation.
• 3/4 grooved main bearings optimize load-carrying surface area and oil flow to the conrod bearings, enhancing overall engine efficiency.
• Tight, consistent wall tolerances help maintain precise clearances, crucial for high-performance applications.
• Enlarged ID chamfers accommodate larger fillet radii on performance crankshafts, ensuring compatibility and performance.

Technical Specifications

• Size: STD
• Oil Clearance: +0.001" extra
• Half Type: Identical Halves
• Material: Tri-metal hardened steel backs
• Min Std Shaft Size: 2.6567" / 67.480 mm
• Max Std Shaft Size: 2.6577" / 67.506 mm
• Min Std Tunnel Size: 2.8504" / 72.400 mm
• Max Std Tunnel Size: 2.8512" / 72.421 mm
• Max Wall at Crown: 0.0957" / 2.430 mm
• Max Overall Length: 0.758" / 19.26 mm

Customer Feedback

A 2021 Ford F-150 owner shared, "I installed the ACL 5M5647HX-STD bearings during my engine rebuild, and the difference was night and day. The engine revs smoother and holds power through the entire RPM range." Another user with a 2020 Subaru WRX noted, "These bearings have held up beautifully on the track. No signs of wear even after several hard laps!"

Upgrade your engine's internals with the ACL 5M5647HX-STD Race Series Engine Bearings and experience the difference in performance and reliability. These bearings are built to last, ensuring your engine can handle whatever you throw at it, whether on the street or the track.