ACL Nissan KA24DE Inline 4 .25mm Oversized High Performance Main Bearing Set

Already running a built KA24DE? This main bearing set is the next piece of the puzzle for a strong bottom end. ACL is a well-known name in performance engine components, and these main bearings are built to handle the extra stress that comes with a performance engine build. They are .25mm oversized, meaning they're designed to be used when the crankshaft journals have been machined down by 0.25mm to clean them up or account for wear. This ensures a proper, snug fit and optimal oil clearance.

These bearings are made with a tri-metal construction, which is a standard for high-performance applications. This material setup offers a good balance of strength and conformability, helping them to absorb shock loads and maintain oil film under high RPMs and heavy loads. When you're building an engine that needs to perform, using well-built bearings like these is crucial for longevity and reliability. They are designed to fit right into your KA24DE block after the crankshaft has been prepared for the .25mm undersize.

This set includes the main bearings needed for your KA24DE engine. Make sure your crankshaft journals have been measured and machined to the correct .25mm undersize before installation. Proper installation, including correct oil clearances and torque specifications, is key to getting the most out of these performance bearings.