If you're looking to push your engine to the limit, the ACL Race Series Engine Bearings are worth a serious look. These aren't just any bearings; they're crafted for those who demand high performance, especially at those higher RPMs where most stock options just can't keep up. Whether you're working on a 4, 6, or 8-cylinder setup, these bearings have you covered.

What sets these apart? For starters, the overlay plate is designed with high strength but comes in a reduced thickness. This means better fatigue properties, which is crucial when you're really pushing your engine. The hardened steel backs on all the rod bearings add an extra layer of support for the bearing lining, ensuring they stay put in the housing where they belong. No one wants to deal with bearing retention issues, especially in a performance build.

Another neat feature is the increased crush, which helps keep the bearings securely in place. Plus, they've eliminated flash plating on the back of the bearings. This is a game-changer for heat transfer, allowing for better cooling and grip between the bearings and the housing. You want those bearings to stay put and perform under pressure, and these do just that.

When you're revving high, bore distortion is a real concern. That’s where the increased eccentricity comes in—it compensates for that distortion and helps form hydrodynamic oil films, keeping everything lubricated and running smoothly. And let's not forget the 3/4 grooved main bearings, which optimize the load-carrying surface area and ensure oil flows like it should to the conrod bearings.

These bearings boast tight, consistent wall tolerances, making it easier to maintain those important clearances. And if you're running a performance crankshaft, the enlarged ID chamfers on the bearing edges accommodate larger fillet radii, ensuring a snug fit.

As for the specs, you can choose from sizes STD, .025, and .25, with standard oil clearance and identical halves. The tri-metal construction with hardened steel backs means durability you can trust. The dimensions are spot on, with a minimum standard shaft size of 2.2433 inches and a maximum of 2.2441 inches, making them suitable for a range of applications.

These bearings fit a variety of Mitsubishi models, including the Eclipse (1990-2011), Galant (1994-2012), and Starion (1983-1989). If you're serious about your build, these ACL Race Series Engine Bearings are definitely worth considering. They combine quality materials and smart engineering to deliver the performance you need on the track or the street.