If you're diving into the world of high-performance engines, you know that the heart of your ride lies in the bearings. Let me tell you, the ACL Race Series Engine Bearings are a game changer. These aren’t just any bearings; they’re designed for those who push their engines to the limit, especially when it comes to RPMs. Whether you’re working on a 4, 6, or 8-cylinder setup, these bearings have got your back.

What sets these apart? For starters, the high-strength overlay plate is thinner than what you might find elsewhere. This isn’t just for show; it actually improves fatigue properties, meaning these bearings are built to last. And if you’ve ever dealt with bearing retention issues, you’ll appreciate the hardened steel backs on the rod bearings. They offer solid support for the bearing lining and keep everything snug in the housing.

Now, let’s talk about crush. The increased crush on these bearings means they stay put, giving you peace of mind even when you’re pushing your engine hard. Plus, they’ve eliminated flash plating on the back, which is a smart move. This change enhances heat transfer and maximizes grip between the bearings and the housing—essential when you’re dealing with high temperatures.

Another cool feature is the increased eccentricity. This isn’t just some fancy term; it compensates for bore distortion at high RPMs and helps in forming hydrodynamic oil films. And if you’re worried about oil flow, the 3/4 grooved main bearings optimize the load-carrying surface area and ensure your conrod bearings get the oil they need.

Consistency is key, right? With tight and consistent wall tolerances, you can maintain those vital clearances without a hitch. And if you’re working with performance crankshafts, you’ll appreciate the enlarged ID chamfers on the bearing edges. They accommodate larger fillet radii, so you can really unleash the potential of your engine.

Let’s get into some specs. These bearings come in sizes like STD, 025, and .25, with standard oil clearance and identical halves. Made from tri-metal with hardened steel backs, they’re built to withstand the rigors of performance driving. The minimum standard shaft size is 1.7709 inches, maxing out at 1.7717 inches. And for the tunnel size, you’re looking at a minimum of 1.8898 inches and a maximum of 1.8906 inches. The wall at the crown can go up to 0.0590 inches, with an overall length of 0.7283 inches.

These bearings are a perfect fit for Acura Integra models from 1986 to 2001, specifically the 4B1956A-.75 ACL Honda 4 .75mm Oversized Rod Bearing Set from '88 to '95. If you’re serious about your build, you won’t want to overlook these bearings. They’re tough, reliable, and ready to handle whatever you throw at them.