If you’re looking to push your engine’s performance to the next level, you might want to take a closer look at these ACL Race Series Engine Bearings. They’re not just any bearings; they’ve got a unique blend of design, metallurgy, and engineering that really stands out in the crowd. Built with high RPM conditions in mind, these bearings are a solid choice for anyone with popular 4, 6, or 8-cylinder setups.

What really impresses me about these bearings is the high-strength overlay plate. It’s thinner than what you might find elsewhere, which actually improves fatigue properties. That means they can handle the heat and stress of high-performance driving without breaking a sweat. And let’s talk about the hardened steel backs on all the rod bearings. They provide excellent support for the bearing lining, which helps keep everything securely in place in the housing.

Another cool feature is the increased crush. This isn’t just a number; it really helps with bearing retention, so you won’t have to worry about them shifting around when the engine’s revving high. Plus, they’ve eliminated flash plating on the back of the bearings, which improves heat transfer. This little detail maximizes the grip between the bearings and their housing, ensuring they stay put and perform optimally.

These bearings have increased eccentricity too, which is a fancy way of saying they compensate for any bore distortion you might encounter at high RPMs. This helps in forming hydrodynamic oil films, which is crucial for keeping everything lubricated under pressure. And for those of us who are all about oil flow, the 3/4 grooved main bearings are designed to optimize the load-carrying surface area, ensuring that oil reaches the conrod bearings efficiently.

Consistency is key in performance, and these bearings deliver with tight, consistent wall tolerances. This helps maintain the clearances you need for that perfect fit. They’ve even enlarged the ID chamfers on the edges where necessary to accommodate larger fillet radii on performance crankshafts. It’s the little things that make a big difference, right?

Now, let’s get into the specs. These bearings come in standard size, with an extra 0.001" oil clearance, which is a nice touch for those who like a bit more room for lubrication. They’re made from tri-metal hardened steel backs, ensuring durability and strength. The dimensions are spot on, with a minimum standard shaft size of 1.6529 inches and a maximum of 1.6535 inches. The tunnel sizes range from 1.7717 inches to 1.7726 inches, and the max wall at the crown is 0.058 inches. Overall length? It’s a tidy 0.6732 inches.

These bearings are a perfect fit for a range of vehicles, including the Toyota Celica from 1982 to 2005 and the Toyota MR2 from 1984 to 1999. Specifically, if you’re working with the 3SGTE engine, this high-performance rod bearing set is worth checking out. With all these features and specs, it’s clear these bearings are designed for serious performance enthusiasts who want reliability on their side.