ACL Race Series Engine Bearings - 5M8353A-STD

If you're looking to push your Mazda 323 (1986-2003) or Mazda MX-3 (1993-1998) to its limits, the ACL Race Series Engine Bearings are engineered for just that. These high-performance Trimetal bearings are designed to thrive under higher RPM conditions, ensuring your engine runs smoothly and efficiently even when the heat is on.

Why Choose ACL Race Series Bearings?

The unique fusion of advanced design, metallurgy, and engineering makes these bearings a must-have for any serious car owner. Here's a rundown of what sets them apart:

• High strength overlay plate with reduced thickness enhances fatigue resistance, giving you confidence during those high-rev runs.
• Hardened steel backs on all rod bearings improve support and help retain the bearing lining in the housing, reducing the risk of failure.
• Increased crush for better bearing retention, ensuring that your bearings stay put even under extreme conditions.
• Eliminated flash plating on the back of the bearings enhances heat transfer and maximizes grip within the housing.
• Increased eccentricity compensates for bore distortion at high RPMs, 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, which is critical for performance.
• Tight and consistent wall tolerances help maintain precise clearances, ensuring your engine runs as it should.
• Enlarged ID chamfers accommodate large fillet radii on performance crankshafts, giving you that extra edge you need.

Technical Specifications

• Size: STD, .025, .25, .50
• Oil Clearance: Standard
• Half Type: Identical Halves
• Material: Tri-metal Hardened Steel Backs
• Min Std Shaft Size: 1.9661 in / 49.938 mm
• Max Std Shaft Size: 1.9668 in / 49.956 mm
• Min Std Tunnel Size: 2.1259 in / 53.998 mm
• Max Std Tunnel Size: 2.1267 in / 54.018 mm
• Max Wall at Crown: 0.0793 in / 2.013 mm
• Max Overall Length: 0.6941 in / 17.63 mm

Customer Feedback

One Mazda 323 owner shared, "After installing the ACL Race Bearings, I noticed a significant difference in how my engine responds at higher RPMs. The oil flow is noticeably better, and I can push my car harder without worrying about bearing failure." Another user with a Mazda MX-3 noted, "These bearings fit perfectly and have held up during my weekend track days. They give me the confidence to rev higher without hesitation."

Fitment

These bearings are compatible with the following models:

• Mazda 323 (1986-2003)
• Mazda MX-3 (1993-1998)

Upgrade your engine's reliability and performance with the ACL Race Series Engine Bearings — a choice that every Mazda owner looking for serious power should consider.