King Engine Bearings CR881SI1.0 SI-Series Connecting Rod Bearing Set

The King Engine Bearings CR881SI1.0 is a high-quality SI-Series connecting rod bearing set designed for OE replacement applications in aftermarket gasoline or diesel engine rebuilding and performance engines with OE crankshafts. The SI Series is King's OE replacement solution for modern engines running under medium load conditions, designed with precision and application-specific engineering that offers a smart balance of durability, performance, and value.

Key Features:

• Constructed with an aluminum alloy strengthened with tin and 3% silicone, purpose-built for OE replacement engines operating under medium-load conditions
• Improved finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts
• Features improved oil clearance to reduce wear and increase engine life, which lessens operating noise, vibration, and excess oil flow
• Engineered with approximately 40 HV hardness, making them especially compatible with nodular cast iron crankshafts for the right blend of strength and wear resistance
• Bi-metal construction with aluminum silicon base material
• Top layer offers excellent embeddability to help prevent foreign debris from damaging OEM crankshafts

This bearing set is specifically designed for Ford 281ci and 330ci engines, providing a reliable direct replacement solution for engine rebuilds. King Engine Bearings was founded in 1960 with the objective of supplying the highest quality bearings available, and specializes in engine bearings for automobiles, light duty and heavy duty trucks, marine, aviation, and other internal combustion engines.