KING SI BI-METAL MAIN BEARINGS - EB-MB509SI-040

King Bearings' bi-metal SI material blends Aluminum with 2.5-3% Silicon, providing strength. Ideal for medium-load engines, particularly engines using nodular cast iron crankshafts. It excels as a Lead-free OE replacement Bearing.

Commonly use for

Main Bearing Set for CHEVROLET 400 medium-load engines particularly ones using nodular cast iron crankshafts.

Tech Features

• Aluminum Based - Lead free Aluminum based material used for low to heavy load engines
• Lead Free - A lead-free bearing material prioritizes environmental sustainability and safety, utilizing alternative compounds to achieve optimal performance in diverse applications

SI Series Material

Aluminum based material, strengthen by 2.5-3% silicon, for medium load engines or nodular cast iron crankshafts.