King Engine Bearings Toyota 3K/4K/(Size +1.0mm) Main Bearing Set

King Engine Bearings is well-known for making solid engine bearings, and this main bearing set is built for your 1968-1979 Toyota Corolla with a 3K or 4K engine. When you're rebuilding the bottom end of your engine, a fresh set of main bearings is crucial for ensuring proper crankshaft support and oil flow. These bearings are made with a bimetal construction, meaning they have an aluminum base, which helps them handle the demands of engine operation.

This particular set is sized 1.0mm undersize, which is important to note if you're machining your crankshaft. Using the correct bearing size is key to achieving the proper oil clearance, which is essential for the longevity of your engine. King's focus on materials and construction means you're getting a well-built part that will perform reliably.