SKU: KEBMB557SISTDX
UPC: 611500417917
MPN: MB 557SISTDX
The King Bearings Main Bearing Set SI-Series Standard for Small Block Chevrolet engines is designed for builders and enthusiasts seeking reliable crankshaft support in various applications, including street and strip use. This bearing set is essential for any engine rebuild or performance upgrade, ensuring optimal oil pressure stability and durability.
Constructed from advanced copper-lead composite material with a tin-aluminum backing, the SI-Series bearings provide superior load capacity and conformability. The standard sizing matches original small block Chevrolet specifications, optimizing journal-to-bearing clearance and oil film thickness while minimizing drag.
This main bearing set is compatible with all standard small block Chevrolet applications from 262 to 400 cubic inches, including 283, 305, 327, 350, and 400 variants. The rolled edge design enhances bearing retention during high-RPM operation, making it suitable for both stock and mildly modified engines.
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