King Engine Bearings SI-Series Connecting Rod Bearing Set

King Engine Bearings SI-Series connecting rod bearings (rod bearing sets) are made for OE-replacement engine rebuilds. They also suit mild performance builds that keep the factory crankshaft. The line is made for gasoline and diesel engines and is built around King's application-specific engineering.

Key Features:

• Upgraded bi-metal construction: An aluminum alloy with tin and silicon improves on conventional bi-metal bearings. It can also serve as a cost-effective alternative to traditional tri-metal designs.
• Made for medium-load engines: The alloy hardness (about 40 HV) balances strength and wear resistance. This makes it a good match for nodular cast iron crankshafts.
• Improved surface finish: This helps reduce microscopic ferrite peaks on nodular cast iron crankshafts that are improperly ground or polished.
• Improved oil clearance: This helps reduce wear and extend engine life. It also helps lessen operating noise, vibration and excess oil flow.
• Good embeddability: The top layer helps keep foreign debris from damaging the crankshaft journals.
• Direct replacement design: These bearings are for stock-style rebuilds that use an OE crankshaft.

SI-Series bearings are intended for use with factory crankshafts. King offers its HP and XP series bearings for aftermarket crankshaft and heavier-duty applications. Choose the SI-Series for a durable, cost-effective rod bearing in a rebuild.