ACL Acura B17A1/B18A1/B18B1 / B18C1/B18C5 VTEC / Honda K20A3/K20A2/K24A 0.25mm Oversized High Perfor

ACL has been making engine bearings for decades, and these main bearings for your Acura or Honda are one of their staples. If you're rebuilding an engine or dealing with worn-out bearings, these are a solid option. They're designed to be 0.25mm oversized, which is crucial if your crankshaft journals have been ground down during a previous repair or to account for normal wear. This size helps restore proper oil clearance, which is key for engine health and longevity.

These bearings are made with a multi-layer material construction, featuring a steel backing for strength and a bearing overlay that's designed to handle the pressures and temperatures inside your engine. The 0.25mm oversize means they're meant to be installed on a crankshaft that has been machined to match this specific size. Proper installation and ensuring the correct oil clearance are critical steps when using oversized bearings like these to ensure your engine runs smoothly and reliably.

When you're putting an engine back together, especially after a rebuild or if you've had to machine the crankshaft, using bearings that are the correct size is essential. These ACL bearings are a popular choice because they offer a well-built component that fits right into many popular Acura and Honda engines, helping you get your project back on the road.