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Unpublished Item

JEGS Performance Products 25017 - JEGS Main Bearings



JEGS Performance Products 25017 - JEGS Main Bearings

Part Number: 555-25017

High-Performance Main Bearing Set
  • Small Block Chevy (Large Journal)
  • +.010"
  • $38.97
    Ships

    Specifications:

    Bearing Usage
    Performance
    Groove Location
    Upper
    Grooved Bearing
    Yes
    Crank Undersize (in.)
    0.01
    Engine Family
    Small Block
    Engine Make
    Chevy
    Engine Size
    283-357
    Material
    Bi-metal, silicon aluminum

    Traditional bearings have three layers: steel, copper-lead, and thin babbitt overlay (only 0.0005" to 0.0008"). JEGS Main Bearings in a Performance or High-Performance series have two layers: high-strength steel and bonded silicon, tin, and copper in an aluminum matrix (0.015" thick). Because an alloy, properties are maintained through its entire depth to deliver consistent, reliable output. Additionally, micro-fine machined High-Performance Bearings have chamfered oil holes and offer a copper-lead version for Chevy Gen III/IV LS Engines only. Bearings are sold in sets for Chevy and Ford applications.

    High Load Capacity
    Aluminum silicon bearings withstand the stress of high-performance engines. JEGS Bearings are made from the same metallurgical alloy so cars that have standard bearings benefit from this alloy used in race engines.

    Temperature Resistance
    This alloy's melting/fatigue point is 450°+ F (100° more than the thin babbitt overlay of tri-metal bearings). This means extra protection against localized overheating due to misalignment, detonation, overloading, loss of coolant, etc.

    Particle Embedability
    More than half of engine bearing failure is caused by metallic particles that scratch crank journals and weaken or tear thin bearing overlays. Because aluminum silicon overlay is much thicker than babbitt in tri-metal bearings (0.015" vs. 0.0008"), it provides 18 times more embedability to trap particles to prevent crank journal scratches. This is especially true for particles over 0.0004", which cause most of the damage.

    Conformability
    The thicker aluminum silicon layer allows bearings to better conform to problems, such as metal-to-metal contact due to misalignment. Greater conformability also means fewer bearing failures.

    Control of Wall Tolerance
    Bearing-to-journal clearance is affected by several factors. We've alleviated concerns about inconsistent shell-to-shell bearing wall thickness by using statistical control methods to minimize wall thickness variation. JEGS Engine Bearing thickness varies no more than 0.00010". Other manufacturers produce bearings with wall thickness at the crown that varies as much as 0.00025".

    Does this fit your vehicle?

    Narrow Results

    1985 BUICK REGAL

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1979 PONTIAC FIREBIRD

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1984 CHEVROLET MONTE CARLO

    • EngineType: ALL
    • SubModel: SS

    1973 CHEVROLET LAGUNA

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1977 BUICK CENTURY

    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8

    1983-1984 PONTIAC BONNEVILLE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BROUGHAM

    1974-1975 CHEVROLET LAGUNA

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1979-1980 PONTIAC FIREBIRD

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1979 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1993 CHEVROLET CAPRICE

    • EngineType: V8
    • SubModel: CLASSIC

    1978 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 305
    • EngineType: V8

    1976 CHEVROLET MONZA

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1973 CHEVROLET CORVETTE

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1980 CHEVROLET IMPALA

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1980-1981 PONTIAC LAURENTIAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SAFARI

    1972 CHEVROLET IMPALA

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1978 BUICK REGAL

    • Liter: 5.0
    • SubModel: LIMITED
    • CUI: 305
    • EngineType: V8

    1977 BUICK CENTURY

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1977 OLDSMOBILE OMEGA

    • Liter: 5.7
    • SubModel: F85
    • CUI: 350
    • EngineType: V8

    1978-1980 PONTIAC GRAND AM

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1975-1976 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: BASE

    1976 CHEVROLET MALIBU

    • Liter: 5.7
    • SubModel: CLASSIC
    • CUI: 350
    • EngineType: V8

    1977-1979 CHEVROLET MONZA

    • EngineType: V8
    • SubModel: BASE

    1989 CHEVROLET CAMARO

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1980-1981 CHEVROLET CAMARO

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1980 OLDSMOBILE CUTLASS

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8

    1977 PONTIAC VENTURA

    • Liter: 5.7
    • Aspiration: N
    • SubModel: SJ
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8

    1979 OLDSMOBILE CUTLASS

    • Liter: 5.0
    • EngineType: V8
    • SubModel: VISTA CRUISER

    1976 CHEVROLET CAMARO

    • Liter: 5.7
    • SubModel: LT
    • CUI: 350
    • EngineType: V8

    1977 CHEVROLET CORVETTE

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8

    1980 OLDSMOBILE CUTLASS CRUISER

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BROUGHAM

    1978 OLDSMOBILE CUTLASS CALAIS

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8

    1978 BUICK CENTURY

    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 305
    • EngineType: V8

    1984 PONTIAC BONNEVILLE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: LE

    1973 CHEVROLET CAPRICE

    • Liter: 5.7
    • SubModel: ESTATE
    • CUI: 350
    • EngineType: V8

    1977-1978 CHEVROLET MALIBU

    • EngineType: V8
    • SubModel: BASE

    1978-1979 PONTIAC LAURENTIAN

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8

    1974-1975 CHEVROLET NOVA

    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8

    1972 CHEVROLET CORVETTE

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8

    1975-1976 CHEVROLET MALIBU

    • Liter: 5.7
    • EngineType: V8
    • SubModel: ESTATE

    1978-1979 PONTIAC PARISIENNE

    • EngineType: V8
    • SubModel: BASE

    1974-1975 CHEVROLET MALIBU

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1983 PONTIAC GRAND LEMANS

    • EngineType: V8
    • SubModel: BR

    1980 OLDSMOBILE CUTLASS

    • Liter: 5.0
    • EngineType: V8
    • SubModel: LS

    1979-1981 CHEVROLET MALIBU

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8

    1986 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: S/E
    • CUI: 305
    • EngineType: V8

    1978-1979 PONTIAC GRAND PRIX

    • Liter: 5.0
    • SubModel: LJ
    • CUI: 305
    • EngineType: V8

    1985 PONTIAC FIREBIRD

    • EngineType: V8
    • SubModel: S/E

    1974 CHEVROLET MALIBU

    • Liter: 5.7
    • SubModel: ESTATE
    • CUI: 350
    • EngineType: V8

    1977 PONTIAC PHOENIX

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1978-1979 PONTIAC PHOENIX

    • EngineType: V8
    • SubModel: LJ

    1977 CHEVROLET CAPRICE

    • EngineType: ALL
    • SubModel: ESTATE

    1978-1979 BUICK SKYLARK

    • EngineType: V8
    • SubModel: S

    1981 PONTIAC GRAND LEMANS

    • Liter: 5.0
    • EngineType: V8
    • SubModel: LE

    1978 PONTIAC GRAND LEMANS

    • EngineType: V8
    • SubModel: BASE

    1991-1992 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: Z28
    • EngineType: V8

    1978 PONTIAC GRAND PRIX

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8

    1988 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • EngineType: V8

    1974-1975 CHEVROLET NOVA

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1977 CHEVROLET MONTE CARLO

    • EngineType: ALL
    • SubModel: BASE

    1978 OLDSMOBILE CUTLASS SALON

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • Liter: 5.7
    • SubModel: NOMAD
    • CUI: 350
    • EngineType: V8

    1978-1979 PONTIAC SUNBIRD

    • EngineType: V8
    • SubModel: BASE

    1991 BUICK ROADMASTER

    • EngineType: ALL
    • SubModel: BASE

    1986 PONTIAC PARISIENNE

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8

    1978-1979 BUICK CENTURY

    • Liter: 5.7
    • EngineType: V8
    • SubModel: CUSTOM

    1976 PONTIAC GRAND LEMANS

    • EngineType: ALL
    • SubModel: BR

    1972 CHEVROLET KINGSWOOD

    • Liter: 5.7
    • SubModel: ESTATE
    • CUI: 350
    • EngineType: V8

    1977 PONTIAC VENTURA

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8

    1983-1984 PONTIAC BONNEVILLE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1984 OLDSMOBILE CUTLASS CALAIS

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8

    1982-1983 BUICK REGAL

    • Liter: 5.0
    • EngineType: V8
    • SubModel: ESTATE WAGON

    1979-1980 OLDSMOBILE CUTLASS SALON

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BROUGHAM

    1977 PONTIAC GRAND LEMANS

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1977 PONTIAC PARISIENNE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1980-1982 PONTIAC PARISIENNE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SAFARI

    1972 CHEVROLET BROOKWOOD

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1979 BUICK CENTURY

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SPECIAL

    1980-1983 CHEVROLET CAPRICE

    • CC: 5031
    • Liter: 5.0
    • SubModel: CLASSIC
    • EngineType: V8

    1986 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8

    1983 CHEVROLET MALIBU

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1976 PONTIAC LEMANS

    • EngineType: ALL
    • SubModel: SPORT COUPE

    1991 OLDSMOBILE CUSTOM CRUISER

    • EngineType: ALL
    • SubModel: ALL

    1985 BUICK REGAL

    • EngineType: V8
    • SubModel: LIMITED

    1979-1980 BUICK REGAL

    • Liter: 5.0
    • EngineType: V8
    • SubModel: LIMITED

    1979 OLDSMOBILE CUTLASS

    • Liter: 5.7
    • Aspiration: N
    • SubModel: VISTA CRUISER
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8

    1980 CHEVROLET CORVETTE

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • EngineType: V8

    1978-1979 PONTIAC LEMANS

    • Liter: 5.0
    • SubModel: SAFARI
    • CUI: 305
    • EngineType: V8

    1977 PONTIAC VENTURA

    • Liter: 5.0
    • SubModel: SJ
    • CUI: 305
    • EngineType: V8

    1979-1980 PONTIAC GRAND LEMANS

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SAFARI

    1973-1974 CHEVROLET CAPRICE

    • Liter: 5.7
    • SubModel: CLASSIC
    • CUI: 350
    • EngineType: V8

    1985 PONTIAC FIREBIRD

    • EngineType: V8
    • SubModel: BASE

    1978 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: BASE

    1977 PONTIAC VENTURA

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8

    1977 OLDSMOBILE OMEGA

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1977 CHEVROLET CAMARO

    • EngineType: V8
    • SubModel: LT

    1977 PONTIAC PHOENIX

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8

    1972 CHEVROLET CHEVELLE

    • Liter: 5.7
    • SubModel: CONCOURS
    • CUI: 350
    • EngineType: V8

    1976 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • EngineType: V8

    1978-1979 BUICK SKYLARK

    • EngineType: V8
    • SubModel: BASE
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