• King Bearings MB 556SI 020 Main Bearing Set for Big Block Chevy
  • King Bearings MB 556SI 020 Main Bearing Set for Big Block Chevy

King Bearings MB 556SI 020 Main Bearing Set for Big Block Chevy

$31.99 USD
$31.99 USD
$31.99 USD
Shipping calculated at checkout.

Vendor : KING BEARINGS

Product Type : Engines and Components

Sku : KEBMB556SI020

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Main Bearing Set - BBC GEN 4 5 6 - 1/2 Groove

The King Bearings MB 556SI 020 main bearing set is designed for Big Block Chevy applications and features a 0.020-inch undersize specification. This SI-Series bearing kit is identified as a main bearing set for BBC Gen 4, Gen 5, and Gen 6 engines.

The set uses a 1/2-groove design and is intended for engine rebuild or replacement applications requiring the specified undersize main bearing configuration. Verify the engine generation and bearing requirements before installation to ensure the correct application.

Manufactured by King Bearings, this main bearing set provides a purpose-specific replacement option for compatible Big Block Chevy engine builds. The part number for reference is MB 556SI 020.

Features:

  • Brand: King Bearings
  • Part Number: MB 556SI 020
  • Bearing Type: Main bearing set
  • Application: Big Block Chevy
  • Engine Generations: BBC Gen 4, Gen 5, and Gen 6
  • Bearing Design: 1/2 groove
  • Bearing Series: SI-Series
  • Undersize: 0.020 inch