If you’re diving into the world of high-performance engines, you know how crucial the right bearings are. That’s where these ACL Race Series Engine Bearings come into play. They’re not just any bearings; they’re built for those who push their engines to the limit, whether you're cruising in a classic Chevy or tearing up the track. With a unique blend of design, metallurgy, and engineering, these bearings are crafted to handle the demands of higher RPMs without breaking a sweat.

• High Strength Overlay: The overlay plate is thinner, which might sound counterintuitive, but it actually improves fatigue resistance. This means they can take a beating and keep on going.
• Hardened Steel Backs: All the rod bearings come with hardened steel backs. This isn’t just for show—it provides solid support for the bearing lining and helps keep everything snug in the housing.
• Increased Crush: You’ll notice better bearing retention thanks to the increased crush. This means they stay put, even under stress.
• No Flash Plating: We ditched the flash plating on the back of these bearings. Why? It helps with heat transfer, so they can dissipate heat better and grip the housing more effectively.
• Increased Eccentricity: This feature compensates for bore distortion at high RPMs, helping to form those all-important hydrodynamic oil films.
• 3/4 Grooved Main Bearings: This design optimizes the load-carrying surface area and improves oil flow to the conrod bearings, which is essential for those high-performance applications.
• Tight Wall Tolerances: Consistent wall tolerances help maintain the clearances you need for a smooth operation.
• Enlarged ID Chamfers: We’ve added chamfers on the bearing edges to accommodate larger fillet radii on performance crankshafts, ensuring a better fit.

Specifications:

• Size: STD, 001, 010
• Oil Clearance: Standard
• Half Type: Upper & Lower
• Material: Tri-metal Hardened Steel Backs
• Min Std Shaft Size: 1.999in / 50.775 mm
• Max Std Shaft Size: 2in / 50.8 mm
• Min Std Tunnel Size: 2.1247in / 53.967 mm
• Max Std Tunnel Size: 2.1252in / 53.98 mm
• Max Wall at Crown: 0.0621in / 1.577 mm
• Max Overall Length: 0.8417in / 21.38 mm

Notes: These are specifically for a 50.8mm journal, so make sure you're matching them up correctly.

Products Fitment:

• Chevrolet Bel Air 1950-1975 & 1981
• Chevrolet Camaro 1975-2002 & 2010-2021
• Chevrolet Caprice 1975-1996 & 2000-2017
• Chevrolet El Camino 1975-1987
• Chevrolet Impala 1975-1985 & 1994-1996 & 2000-2020
• Chevrolet Malibu 1975-1983 & 1997-2021

So if you’re looking to give your engine the best chance at performance, these bearings are a solid choice. They’re designed to work hard, just like you do.