Home / Shop / King XP-Series Coated Main Bearings MB 557XPC Bearing, XP-Series, Coated, Standard, Tri Metal, Chevy, Small Block, Set of 5

King XP-Series Coated Main Bearings MB 557XPC Bearing, XP-Series, Coated, Standard, Tri Metal, Chevy, Small Block, Set of 5

SKU: KINGMB557XPC

Main Bearings

King Engine Bearings

King XP-Series Coated Main Bearings MB 557XPC Bearing, XP-Series, Coated, Standard, Tri Metal, Chevy, Small Block, Set of 5

SKU: KINGMB557XPC

Main Bearings

IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.

We accept

Description

Give your engine the winning edge with King XP-Series coated main bearings. Built off the revolutionary XP-Series tri-metal construction, King's factory-applied pMaxKote™ nano-composite coating takes protection to the next level without adding any additional thickness! Order the replacement main bearings designed for fitment with your engine.

pMaxKote™ provides:

* Superior seizure resistance
* Superior cavitation resistance
* Superior wear resistance
* Superior protection against oil starvation

Part Type

Main Bearing Set - Coated SBC w/350 Mains

Data: v4.2 - Upd: 2026-10-16 22:05:58

Specifications

Product Attributes - Brand: King Engine Bearings
Product Attributes - Manufacturer's Part Number: MB 557XPC
Product Attributes - Part Type: Main Bearings
Product Attributes - Product Line: King XP-Series Coated Main Bearings
Product Attributes - UPC: 611500593680
Product Attributes - Bearing Usage: Performance
Product Attributes - Engine Crankshaft Undersize (in.): Stock
Product Attributes - Engine Crankshaft Undersize (mm): Stock
Product Attributes - Grooved Bearing: Yes
Product Attributes - Groove Location: Upper
Product Attributes - Groove Style: 1/2
Product Attributes - Thrust Bearing Oversize: Stock
Product Attributes - Bearing Material: Tri-metal copper-lead nickel
Product Attributes - Quantity: Sold as a set of 5.

Reference Information

Brand Name/s	King Engine Bearings
StreetFX SKU	kingMB557XPC
SFX Item ID	4860414
Supplier Item Code	4860414
Manufacturer SKU	MB557XPC
Manufacturer UPC	611500593680
Alternative References	KEBMB557XPC, KGB-MB557XPC, 557XPC

Compatibility

Application Data

Make	AVANTI
Model	II
Submodel	BASE
Beginning Year	1966
Ending Year	1969
Engine Type	V8
Liter	5.3
CID	327
CC	5358
Engine Family	Chevy small block Gen I
Engine Size	5.3L/327
Application Notes	HE; Flange STD, Optional MB 557SI Race Bearings, pmaxkote (racing line), polymer coated, STD
Region	USA

Make AVANTI
Model II
Submodel BASE
Beginning Year 1969
Ending Year 1972
Engine Type V8
Liter 5.7
CID 350
CC 5733
Engine Family Chevy small block Gen I
Engine Size 5.7L/350
Region USA
Make AVANTI
Model II
Submodel BASE
Beginning Year 1969
Ending Year 1980
Engine Type V8
Liter 5.7
CID 350
Engine Family Chevy small block Gen I
Engine Size 5.7L/350
Region USA
Make AVANTI
Model II
Submodel BASE
Beginning Year 1981
Ending Year 1991
Engine Type V8
Liter 5.0
CID 305
Engine Family Chevy small block Gen I
Engine Size 5.0L/305
Region USA
Make AVANTI
Model II
Submodel GT
Beginning Year 1985
Ending Year 1985
Engine Type V8
Liter 5.0
CID 305
Engine Family Chevy small block Gen I
Engine Size 5.0L/305
Region USA

Make	BIZZARRINI
Model	GT AMERICA
Submodel	BASE
Beginning Year	1966
Ending Year	1969
Engine Type	V8
Liter	5.3
CID	327
CC	5358
Engine Family	Chevy small block Gen I
Engine Size	5.3L/327
Application Notes	HE; Flange STD, Optional MB 557SI Race Bearings, pmaxkote (racing line), polymer coated, STD
Region	USA

Make BUICK
Model APOLLO
Submodel BASE
Beginning Year 1973
Ending Year 1974
Engine Type V8
Liter 5.7
CID 350
CC 5733
Engine Family BUICK V8 GAS
Engine Size 5.7L/350
Engine VIN Code H
Region USA
Make BUICK
Model APOLLO
Submodel BASE
Beginning Year 1973
Ending Year 1974
Engine Type V8
Liter 5.7
CID 350
CC 5733
Engine Family BUICK V8 GAS
Engine Size 5.7L/350
Engine VIN Code J
Region USA
Make BUICK
Model CENTURION
Submodel BASE
Beginning Year 1973
Ending Year 1973
Engine Type V8
Liter 5.7
CID 350
CC 5733
Engine Family BUICK V8 GAS
Engine Size 5.7L/350
Engine VIN Code H
Region USA
Make BUICK
Model CENTURION
Submodel BASE
Beginning Year 1973
Ending Year 1973
Engine Type V8
Liter 5.7
CID 350
CC 5733
Engine Family BUICK V8 GAS
Engine Size 5.7L/350
Engine VIN Code J
Region USA
Make BUICK
Model CENTURY
Submodel BASE
Beginning Year 1973
Ending Year 1974
Engine Type V8
Liter 5.7
CID 350
CC 5733
Engine Family BUICK V8 GAS
Engine Size 5.7L/350
Engine VIN Code H
Region USA
Make BUICK
Model CENTURY
Submodel BASE
Beginning Year 1973
Ending Year 1974
Engine Type V8
Liter 5.7
CID 350
CC 5733
Engine Family BUICK V8 GAS
Engine Size 5.7L/350
Engine VIN Code J
Region USA
Make BUICK
Model CENTURY
Submodel BASE
Beginning Year 1977
Ending Year 1977
Engine Type V8
Liter 5.7
CID 350
Engine Family Chevy small block Gen I
Engine Size 5.7L/350
Engine VIN Code L
Region USA
Make BUICK
Model CENTURY
Submodel BASE
Beginning Year 1977
Ending Year 1977
Engine Type V8
Liter 5.7
CID 350
Engine Family OLDSMOBILE V8 GAS
Engine Size 5.7L/350
Engine VIN Code R
Region USA
Make BUICK
Model CENTURY
Submodel BASE
Beginning Year 1981
Ending Year 1981
Engine Type V8
Liter 5.7
CID 350
Engine Family OLDSMOBILE V8 DIESEL
Engine Size 5.7L/350
Engine VIN Code N
Region USA
Make BUICK
Model CENTURY
Submodel CUSTOM
Beginning Year 1977
Ending Year 1977
Engine Type V8
Liter 5.7
CID 350
Engine Family OLDSMOBILE V8 GAS
Engine Size 5.7L/350
Engine VIN Code R
Region USA
Make BUICK
Model CENTURY
Submodel CUSTOM
Beginning Year 1977
Ending Year 1979
Engine Type V8
Liter 5.7
CID 350
Engine Family Chevy small block Gen I
Engine Size 5.7L/350
Engine VIN Code L
Region USA
Make BUICK
Model CENTURY
Submodel ESTATE
Beginning Year 1981
Ending Year 1981
Engine Type V8
Liter 5.7
CID 350
Engine Family OLDSMOBILE V8 DIESEL
Engine Size 5.7L/350
Engine VIN Code N
Region USA
Make BUICK
Model CENTURY
Submodel LIMITED
Beginning Year 1981
Ending Year 1981
Engine Type V8
Liter 5.7
CID 350
Engine Family OLDSMOBILE V8 DIESEL
Engine Size 5.7L/350
Engine VIN Code N
Region USA
Make BUICK
Model CENTURY
Submodel LUXUS
Beginning Year 1973
Ending Year 1974
Engine Type V8
Liter 5.7
CID 350
CC 5733
Engine Family BUICK V8 GAS
Engine Size 5.7L/350
Engine VIN Code H
Region USA
Make BUICK
Model CENTURY
Submodel LUXUS
Beginning Year 1973
Ending Year 1974
Engine Type V8
Liter 5.7
CID 350
CC 5733
Engine Family BUICK V8 GAS
Engine Size 5.7L/350
Engine VIN Code J
Region USA
Make BUICK
Model CENTURY
Submodel SPECIAL
Beginning Year 1979
Ending Year 1979
Engine Type V8
Liter 5.7
CID 350
Engine Family Chevy small block Gen I
Engine Size 5.7L/350
Engine VIN Code L
Region USA

Make	BUICK
Model	COMMERCIAL CHASSIS
Submodel	BASE
Beginning Year	1991
Ending Year	1991
Engine Type	V8
Liter	5.0
CID	305
Engine Family	Chevy small block Gen I
Engine Size	5.0L/305
Application Notes	L03; Flange STD, Optional MB 557SI Race Bearings, pmaxkote (racing line), polymer coated, STD
Engine VIN Code	E
Region	USA

Make BUICK
Model COMMERCIAL CHASSIS
Submodel BASE
Beginning Year 1994
Ending Year 1996
Engine Type V8
Liter 5.7
CID 350
Engine Family CHEVY SMALL BLOCK GEN II LT GAS
Engine Size 5.7L/350
Engine VIN Code P
Region USA
Make BUICK
Model ELECTRA
Submodel ESTATE WAGON
Beginning Year 1980
Ending Year 1980
Engine Type V8
Liter 5.7
CID 350
Engine Family BUICK V8 GAS
Engine Size 5.7L/350
Engine VIN Code X
Region USA

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King XP-Series Coated Main Bearings MB 557XPC Bearing, XP-Series, Coated, Standard, Tri Metal, Chevy, Small Block, Set of 5

King XP-Series Coated Main Bearings MB 557XPC Bearing, XP-Series, Coated, Standard, Tri Metal, Chevy, Small Block, Set of 5

Description

Part Type

Specifications

Reference Information

Compatibility

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