If you're looking to push your engine's performance to the next level, let me tell you about these ACL Race Series Engine Bearings. They’ve got a reputation for being tough and reliable, and after using them myself, I can see why. The blend of design, metallurgy, and engineering is spot on, making them perfect for high RPM conditions. Whether you’re working on a 4, 6, or 8 cylinder setup, these bearings are worth considering.

So, what makes these bearings stand out? For starters, the high-strength overlay plate is thinner, which really enhances fatigue properties. This means they can take a beating without losing their integrity. Plus, all the rod bearings come with hardened steel backs. This not only supports the bearing lining but also helps keep them securely in place within the housing—no one wants a bearing to slip when you’re pushing it hard.

They’ve also increased the crush of these bearings, which is great for retention. And here’s a neat feature: they’ve eliminated flash plating on the backs. This little tweak improves heat transfer and maximizes grip between the bearings and the housing. It’s these details that make a real difference when you’re pushing your engine to its limits.

Another thing I appreciate is the increased eccentricity. It compensates for bore distortion at high RPMs and helps form those all-important hydrodynamic oil films. You also get 3/4 grooved main bearings, which optimize the load-carrying surface area and oil flow to the conrod bearings. This is crucial for maintaining performance under stress.

And if you’re like me and care about precision, you’ll love the tight, consistent wall tolerances that help maintain clearances. They’ve even added enlarged ID chamfers on the bearing edges where it counts, making them compatible with those performance crankshafts that have larger fillet radii.

Now, let’s talk specs. These bearings come in sizes STD, 001, and 010, with standard oil clearance. You’ll find both upper and lower half types, crafted from tri-metal with hardened steel backs. The dimensions are pretty specific too—min standard shaft size is 2.124 inches, and max is 2.125 inches, while the tunnel sizes range from 2.25 to 2.2505 inches. The max wall at the crown is 0.0623 inches, and the overall length comes in at 0.8472 inches.

These bearings fit a variety of models, including the Chrysler Cordoba from '75 to '83, the Fifth Avenue from '83 to '89, and the Town & Country from '75 to '88 and even '90 to '16. If you’re working on a Chrysler 318, 340, or 360, this standard size high-performance rod bearing set is definitely worth a look.

In short, if you want your engine to perform at its best, these ACL Race Series Engine Bearings are a solid choice. They’ve got the features and durability to keep you going strong on the track or the street.