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JEGS Performance Main Bearing Set Small Block Ford

JEGS 25052

555-25052

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JEGS Performance Main Bearing Set Small Block Ford $19.99
Performance Main Bearing Set
  • Small Block Ford
  • +.010"

  • JEGS 25052 Details

    Small Block Ford

  • Performance Series

  • Specifications:

    Bearing Usage
    Performance
    Groove Location
    Upper
    Grooved Bearing
    Yes
    Quantity
    Sold as a set
    Crank Undersize (in.)
    0.01
    Engine Family
    Small Block
    Engine Make
    Ford
    Engine Size
    289-351W
    Material
    Bi-metal, silicon aluminum
    Shipping Weight:
    7.16
    Package Height:
    16.900
    Package Width:
    9.600
    Package Depth:
    2.000
    Manufacturer's Part Number:
    20959

    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 tri-metal copper, lead, and nickel version for some applications. 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 JEGS 25052 fit your vehicle?

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    Aspiration

    1975-1977 FORD BRONCO

    • EngineType: ALL
    • SubModel: CUSTOM

    1992-1996 FORD F-150 PICKUP

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1970-1973 FORD MUSTANG

    • Liter: 5.0
    • SubModel: MACH I
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968 FORD TORINO

    • CC: 4727
    • Liter: 4.7
    • SubModel: GT
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1977 FORD LTD II

    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1970-1974 MERCURY MONTEGO

    • Liter: 5.0
    • SubModel: MX BROUGHAM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968 FORD GT40

    • EngineType: ALL
    • SubModel: MK III

    1985 FORD E-250 ECONOLINE

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1963 FORD FORD 300

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1982 FORD LTD

    • EngineType: ALL
    • SubModel: COUNTRY SQUIRE

    1968 FORD GALAXIE 500

    • Liter: 5.0
    • SubModel: XL
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968 MERCURY COMET

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1979-1989 MERCURY GRAND MARQUIS

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1970-1971 FORD TORINO

    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1969 FORD COUNTRY SEDAN

    • CC: 4949
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: F
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1986 LINCOLN MARK VII

    • EngineType: ALL
    • SubModel: BASE

    1987-1991 MERCURY COLONY PARK

    • EngineType: ALL
    • SubModel: BASE

    1978 FORD FAIRMONT

    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: F
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1979 FORD E-150 ECONOLINE

    • Liter: 5.0
    • SubModel: SUPER PASSENGER WAGON
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1970-1974 MERCURY MONTEGO

    • Liter: 5.0
    • SubModel: VILLAGER
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1969 FORD GT40

    • CC: 4727
    • Liter: 4.7
    • SubModel: MK III
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1974 FORD GRAN TORINO

    • Liter: 5.0
    • SubModel: ELITE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1984 FORD MUSTANG

    • Liter: 5.0
    • SubModel: LX
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968-1995 FORD MOTORHOME

    • Liter: 5.0
    • SubModel: CLASS C; E-350
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1969-1974 FORD E-100 ECONOLINE

    • Liter: 5.0
    • SubModel: CLUB WAGON
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1983 FORD E-100 ECONOLINE

    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1975-1977 FORD P-500 VAN

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1986 LINCOLN CONTINENTAL

    • EngineType: ALL
    • SubModel: BASE

    1967 MERCURY COUGAR

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1971 FORD TORINO

    • Liter: 5.0
    • SubModel: 500
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1966-1967 FORD COUNTRY SQUIRE

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1994-1995 FORD MUSTANG

    • Liter: 5.0
    • Aspiration: N
    • SubModel: GT
    • Engine Vin: T
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1984 FORD E-150 ECONOLINE

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1965 FORD FALCON SEDAN DELIVERY

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1964-1965 FORD RANCH WAGON

    • CC: 4727
    • Liter: 4.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: A
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1971-1972 FORD E-300 ECONOLINE

    • Liter: 5.0
    • SubModel: CUSTOM WAGON
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1986 FORD E-150 ECONOLINE

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1979 FORD FAIRMONT

    • CC: 4949
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: F
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968 FORD FALCON

    • Liter: 5.0
    • Aspiration: N
    • SubModel: FUTURA
    • Engine Vin: J
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1983 FORD E-250 ECONOLINE

    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1967 FORD RANCHERO

    • Liter: 4.7
    • SubModel: 500 XL
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1979-1981 FORD LTD

    • Liter: 5.0
    • SubModel: COUNTRY SQUIRE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1978 FORD F-100

    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: G
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1967 FORD FAIRLANE

    • Liter: 4.7
    • SubModel: 500
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1995 FORD MUSTANG

    • EngineType: ALL
    • SubModel: GTS

    1963 FORD GALAXIE 500

    • CC: 4727
    • Liter: 4.7
    • SubModel: VICTORIA
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1977-1979 FORD LTD II

    • Liter: 5.0
    • SubModel: S
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1983-1984 FORD E-150 ECONOLINE

    • Liter: 5.0
    • SubModel: XL
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1987-1991 FORD LTD CROWN VICTORIA

    • EngineType: ALL
    • SubModel: LX

    1990-1991 FORD E-250 ECONOLINE

    • Liter: 5.0
    • SubModel: CARGO
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968 FORD LTD

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1975 FORD E-150 ECONOLINE

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1992-1996 FORD F-250 PICKUP

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1970 MERCURY COUGAR

    • CC: 4950
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1964-1967 MERCURY CALIENTE

    • CC: 4727
    • Liter: 4.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1979-1980 FORD F-350

    • Liter: 5.0
    • SubModel: SUPER CAB
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1979-1982 FORD E-150 ECONOLINE

    • Liter: 5.0
    • SubModel: CARGO
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1977-1979 FORD LTD II

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1969-1970 FORD FALCON

    • Liter: 5.0
    • SubModel: FUTURA
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1983 FORD E-150 ECONOLINE

    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1977-1979 FORD RANCHERO

    • Liter: 5.0
    • SubModel: GT
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1963-1967 FORD GALAXIE 500

    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1964-1967 FORD MUSTANG

    • CC: 4727
    • Liter: 4.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1974 FORD GRAN TORINO

    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1972 FORD P-350 VAN

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1991-1992 FORD THUNDERBIRD

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968 FORD RANCH WAGON

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1964-1967 MERCURY CYCLONE

    • CC: 4727
    • Liter: 4.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1975 FORD E-350 ECONOLINE

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968 FORD CUSTOM 500

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968 FORD FALCON

    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: J
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1969-1970 FORD COUNTRY SQUIRE

    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: F
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1970 MERCURY COUGAR

    • CC: 4950
    • Liter: 5.0
    • SubModel: XR-7
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1967 FORD RANCHERO

    • Liter: 4.7
    • SubModel: 500
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1969-1974 FORD E-300 ECONOLINE

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1979 FORD MUSTANG

    • Liter: 5.0
    • SubModel: GHIA
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1982-1985 MERCURY GRAND MARQUIS

    • EngineType: ALL
    • SubModel: COLONY PARK

    1987-1991 FORD F-150

    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968 FORD BRONCO

    • CC: 4727
    • Liter: 4.7
    • Aspiration: N
    • SubModel: ROADSTER
    • Engine Vin: N
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1980 LINCOLN CONTINENTAL

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968 FORD E-300 ECONOLINE

    • Liter: 5.0
    • SubModel: CARGO
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1972 FORD CUSTOM 500

    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: D
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1996-2001 FORD EXPLORER

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1963-1967 FORD GALAXIE 500

    • Liter: 4.7
    • SubModel: XL
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1975 FORD F-100

    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1972-1974 FORD F-350

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1979-1982 MERCURY MARQUIS

    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1963 FORD RANCH WAGON

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1968 FORD MUSTANG

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1968 MERCURY COUGAR

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1987-1989 FORD E-250 ECONOLINE

    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1980 LINCOLN MARK VI

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1975 FORD F-150

    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1987-1989 LINCOLN TOWN CAR

    • EngineType: ALL
    • SubModel: ALL

    1968 FORD E-200 ECONOLINE

    • Liter: 5.0
    • SubModel: CLUB PASSENGER WAGON
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1996-2001 FORD MOTORHOME

    • EngineType: ALL
    • SubModel: CLASS C; E-350

    1968-1969 FORD RANCHERO

    • Liter: 5.0
    • SubModel: 500
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1970-1974 FORD RANCHERO

    • Liter: 5.0
    • Aspiration: N
    • SubModel: 500
    • Engine Vin: F
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1964-1967 FORD CUSTOM 500

    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1977 MERCURY COUGAR

    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )
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