If you're looking to squeeze every bit of performance out of your engine, the ACL Race Series Engine Bearings are something you should definitely consider. These aren't your average bearings; they're crafted with a unique blend of design, metallurgy, and engineering that really stands up to the demands of high RPM conditions. I've had my fair share of experiences with various bearings, and I can tell you, these ones deliver what you expect when you're pushing your engine to the limit.

One of the standout features is the high-strength overlay plate. It's thinner than what you might find elsewhere, which actually improves fatigue properties—something you’ll appreciate on those long drives or track days. Plus, the hardened steel backs on all rod bearings really help support the lining and keep everything snug in the housing. You want your bearings to stick around, right?

They’ve also upped the crush factor, which means better retention of the bearings themselves. And if you’re worried about heat, the elimination of flash plating on the back is a game-changer. It enhances heat transfer, making sure that your bearings stay cool and perform as they should. This is crucial when you’re pushing your engine hard.

Another cool aspect is the increased eccentricity. This helps compensate for any bore distortion that might happen at high RPMs, and it aids in forming those hydrodynamic oil films that keep everything running smoothly. And talk about oil flow—these bearings come with 3/4 grooved main bearings, optimizing the load-carrying surface area and ensuring that oil gets where it needs to go, especially to the conrod bearings.

Consistency is key in engine performance, and these bearings deliver tight, consistent wall tolerances that help you maintain those crucial clearances. Plus, for those of you running performance crankshafts, the enlarged ID chamfers on the bearing edges are designed to accommodate larger fillet radii. It's all in the details.

Now, let’s get into some specs. You can find these bearings in sizes like STD, 001, and 010, with standard oil clearance. They come as upper and lower half types, made from tri-metal with hardened steel backs. The dimensions are pretty precise too, with a minimum standard shaft size of 2.124 inches (53.95 mm) and a maximum of 2.125 inches (53.975 mm). The tunnel sizes range from 2.25 inches (57.15 mm) to 2.2505 inches (57.163 mm), and the overall length is about 0.8472 inches (21.52 mm).

These bearings are a solid fit for a range of applications, including:

• Chrysler Cordoba (1975-1983)
• Chrysler Fifth Avenue (1983-1989)
• Chrysler Town & Country (1975-1988 & 1990-2016)

So if you're working on a Chrysler 318, 340, or 360, these .010mm oversized high-performance rod bearing sets could be just what you need to take your engine to the next level. Trust me, once you feel the difference, you won't look back.