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King Engine Bearings MB557SISTDX Main Bearing Set for GM Small Block - V8

(GMC G2500 1979-95, Yukon 1992-2000, K1500 1979-86, 1988-99, C1500 1979-86, 1988-99, K2500 1979-86, 1988-2000, Jimmy 1970-91 + 225 more models)

Part of: King Engine Bearings Main Bearing Set Oversize

Other options in this family: King Engine Bearings MB5835SI0.5 King Engine Bearings MB5557SI0.75 King Engine Bearings MB4102SI0.25 King Engine Bearings MB5280SI0.5 King Engine Bearings MB5770SI0.25

Manufacturer

Picture for manufacturer King Engine Bearings

Part Number

MB557SISTDX
10 reviews
Sale Price

$27.56

Estimated ship date Tuesday, December 01

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Product Details

The King Engine Bearings MB557SISTDX is a precision-engineered main bearing set designed for General Motors small block V8 engines, including 262, 267, 302, 307, 327, and 350 cubic inch displacements. This complete bearing set provides reliable crankshaft support for engine rebuilds and performance applications.

Construction and Material:

  • Bi-metal construction with silicon aluminum alloy bearing surface
  • Aluminum-based material strengthened with 2.5-3% silicon content
  • Steel backing for structural integrity and heat dissipation
  • Engineered for medium-load applications and nodular cast iron crankshafts

Applications:

  • Compatible with GM small block engines: 262, 267, 302, 307, 327, and 350 CID
  • Standard size bearings for original equipment specifications
  • Suitable for street performance and stock replacement builds

King Engine Bearings are manufactured to OEM tolerances with strict quality control standards, ensuring proper oil clearance and long-term durability. The silicon-aluminum alloy provides excellent wear resistance and conformability for reliable performance in daily driving and moderate performance applications.

Products specifications

Fits

GMC G2500 1979-95, Yukon 1992-2000, K1500 1979-86, 1988-99, C1500 1979-86, 1988-99, K2500 1979-86, 1988-2000, Jimmy 1970-91, Savana 2500 1996-2002, Savana 3500 1996-2002, Savana 1500 1996-2002, C3500 1979-86, 1988-2000 + 221 more models

Bearing Material

Bi-metal, silicon aluminum

Bearing Usage

Direct replacement

Groove Location

Upper

Groove Style

1/2

Grooved Bearing

Yes

Notes

Bearings have 0.001 in. more clearance than stock

Quantity

Sold as a set of 5.

Material

bimetal (aluminum silicon base)

Flange Oversize

FL STD

Undersize

STDX

Title

King Bearings

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

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