If you're diving into the world of performance engines, you know that every little detail counts. That’s where these ACL Race Series Engine Bearings come into play. They’re not just any bearings; they’re built for the serious driver who pushes their engine to the limits. Designed specifically for high RPM conditions, these bearings are a solid choice for 4, 6, and 8-cylinder setups, whether you're on the track or just enjoying a spirited drive.

Now, let’s talk about what makes these bearings stand out:

• High Strength Overlay: The overlay plate is thinner but tougher, which means it can handle fatigue better than your average bearing.
• Hardened Steel Backs: All rod bearings come with hardened steel backs. This not only supports the bearing lining but also keeps them securely in place within the housing. No one wants bearings that wiggle loose!
• Increased Crush: This feature helps keep the bearings snug in their housing, which is crucial during those intense runs.
• No Flash Plating: By eliminating flash plating on the back, these bearings improve heat transfer. This means they stay cooler and grip better, which is essential when you're pushing your engine hard.
• Increased Eccentricity: This is a fancy way of saying these bearings can handle bore distortion at high RPMs, helping to create a solid hydrodynamic oil film.
• 3/4 Grooved Main Bearings: This design optimizes the load-carrying surface area and ensures oil flows smoothly to the conrod bearings, which is crucial for performance.
• Tight Wall Tolerances: Consistency is key in performance engines, and these bearings help maintain those critical clearances.
• Enlarged ID Chamfers: This is particularly useful if you’re running a performance crankshaft with larger fillet radii.

As for the specs, here’s what you need to know:

• Size: Available in STD, .025, and .25
• Oil Clearance: Standard
• Half Type: Identical Halves
• Material: Tri-metal Hardened Steel Backs
• Min Std Shaft Size: 1.8893in / 47.988 mm
• Max Std Shaft Size: 1.8898in / 48.000 mm
• Min Std Tunnel Size: 2.0472in / 52.000 mm
• Max Std Tunnel Size: 2.0479in / 52.016 mm
• Max Wall at Crown: 0.0786in / 1.996 mm
• Max Overall Length: 0.6693in / 0.6693 mm

These bearings fit a range of vehicles, including:

• Lotus Elise (1996-2018)
• Lotus Exige (2004-2018)
• Toyota Celica (1982-2005) - check out the 5M1857A-.75 ACL Toyota 2ZZGE 1796cc 0.75mm Oversized Main Bearing Set for 00+ models.

So, if you’re serious about your engine build and want bearings that can keep up with your passion, these ACL Race Series Engine Bearings are worth considering. They’re built tough and ready to handle whatever you throw at them.