10 Best Automotive Performance Engine Rod & Main Bearing Kits 2025

In the world of automotive performance, the engine is the heart of the beast. That's why we reviewed and scored many products in the Rod & Main Bearings category, ranging from a 7.4 score up to an impressive 9.8. Our Top 10 Automotive Performance Engine Rod & Main Bearing Kits list features the best of the best, but there's one that truly stands out. The ‎Guardian Engine Kits brand may have taken the top spot with their King Engine Bearing compatible replacements for Toyota 22RE 22REC 22RTEC 2.4 2.4L Rod, Main & Thrust bearing Kit set 1985-95 (All STD Sizes). This kit is a game-changer for anyone looking to improve the performance and reliability of their engine. Don't settle for anything less than the best - check out our Top 10 list and see for yourself why ‎Guardian Engine Kits is the clear winner in the Rod & Main Bearings category.