ACL Race Series Engine Bearings - 5M8309-.50

When it comes to maximizing performance in your Subaru Legacy (1990-2017), the ACL Race Series Engine Bearings are engineered to meet the demands of high RPM driving. These Trimetal bearings combine cutting-edge design, advanced metallurgy, and precise engineering to give you the reliability and performance you need on the road or track.

Why Choose ACL Race Series Engine Bearings?

These bearings are specifically designed to withstand the rigors of higher RPM conditions, ensuring optimal performance for both daily driving and spirited racing. Whether you're a weekend warrior or a dedicated track enthusiast, these bearings are built to enhance your engine’s longevity and performance.

Features

• High strength overlay plate with reduced thickness for improved fatigue resistance.
• Hardened steel backs on all rod bearings provide superior support and retention within the housing.
• Increased crush for enhanced bearing retention, ensuring a tight fit.
• Elimination of flash plating on the back of the bearings improves heat transfer and grip.
• Increased eccentricity to counteract bore distortion at high RPMs, aiding in hydrodynamic oil film formation.
• 3/4 grooved main bearings optimize load-carrying surface area and oil flow to conrod bearings.
• Tight, consistent wall tolerances help maintain precise clearances for better performance.
• Enlarged ID chamfers on bearing edges accommodate larger fillet radii on performance crankshafts.

Technical Specifications

• Size Options: STD, .025, .25
• Oil Clearance: Standard
• Half Type: Identical Halves
• Material: Tri-metal with hardened steel backs
• Min Standard Shaft Size: 2.3616 in / 59.984 mm
• Max Standard Shaft Size: 2.3622 in / 60 mm
• Min Standard Tunnel Size: 2.5197 in / 64 mm
• Max Standard Tunnel Size: 2.5205 in / 64.02 mm
• Max Wall at Crown: 0.0789 in / 2.005 mm
• Max Overall Length: 0.748 in / 19 mm

Customer Feedback

Subaru Legacy owners have reported noticeable improvements after installing the ACL Race Series Engine Bearings. One 2010 Legacy GT owner mentioned, "These bearings gave my engine the reliability I was looking for during track days. The oil flow improved, and I noticed better throttle response at higher RPMs." Another 2005 Legacy owner shared, "I was worried about engine wear with my performance mods, but these bearings have held up perfectly, even under hard driving conditions."

Fitment

These bearings are compatible with the following models:

• Subaru Legacy: 1990-2017

Upgrade your Subaru Legacy's engine with the ACL Race Series Engine Bearings (5M8309-.50) for enhanced performance and reliability. Experience the difference in your driving experience today!