If you're looking to push your engine to the limit, let me tell you about the ACL Race Series Engine Bearings. These aren’t just any bearings; they’re engineered for those high-performance moments that really make your heart race. I’ve had my fair share of experiences with these bad boys, and I can confidently say they deliver on what they promise.

What really sets these bearings apart is their unique blend of design and metallurgy. They’re built to handle those higher RPMs that we all crave when we’re out on the road or track. Seriously, whether you’re running a 4, 6, or 8-cylinder engine, you’ll find a fit that works for your setup.

One of the standout features is the high-strength overlay plate. It’s thinner than what you might find in standard bearings, which really helps with fatigue properties. That means they hold up better under pressure. Plus, the hardened steel backs on all the rod bearings give you that extra support for the lining, making sure they stay put in their housing. And let’s be real, nobody wants to deal with bearings that slip or move around.

They’ve also increased the crush on these bearings, which is a fancy way of saying they grip better, keeping everything in place. The elimination of flash plating on the back helps with heat transfer, which is crucial when you’re pushing your engine hard. You want those bearings to stay cool and do their job without overheating.

Another cool feature is the increased eccentricity. This helps compensate for any bore distortion you might experience at high RPMs, ensuring that hydrodynamic oil films form properly. And don’t overlook the 3/4 grooved main bearings—these are designed to optimize the load-carrying surface area and improve oil flow to the conrod bearings, which is essential for keeping everything lubricated and running smoothly.

As for the specs, these bearings come in sizes like STD and .025, with standard oil clearance. They’re made from tri-metal hardened steel backs, which means they’re tough enough to handle whatever you throw at them. The tolerances are tight and consistent, so you can maintain those clearances you need for a solid performance. And if you’re working with performance crankshafts, the enlarged ID chamfers on the edges are there to accommodate larger fillet radii.

In short, if you’re serious about your engine performance, these ACL Race Series Engine Bearings are worth considering. They fit a range of applications, including the Honda Prelude from 1983-2001, specifically for the B18A1/B18B1 engines in standard size. Trust me, you’ll appreciate the difference when you feel that engine roar to life.