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Unpublished Item

JEGS Performance Products 25050

Performance Main Bearing Set Small Block Ford



JEGS Performance Products 25050

Part Number: 555-25050

Performance Main Bearing Set
  • Small Block Ford
  • Standard Size
  • $19.97
    Ships
    JEGS Performance Products 25050 Performance Main Bearing Set Small Block Ford $19.97

    Specifications:

    Bearing Usage
    Performance
    Groove Location
    Upper
    Grooved Bearing
    Yes
    Crank Undersize (in.)
    Stock
    Engine Family
    Small Block
    Engine Make
    Ford
    Engine Size
    289-351W
    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 JEGS Performance Products 25050 fit your vehicle?

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    1982-1983 LINCOLN MARK VI

    • EngineType: ALL
    • SubModel: BASE

    1971 FORD MUSTANG

    • Liter: 5.0
    • SubModel: GRANDE
    • CUI: 302
    • EngineType: V8

    1968-1969 FORD RANCHERO

    • Liter: 5.0
    • EngineType: V8
    • SubModel: 500

    1968 FORD E-100 ECONOLINE

    • EngineType: V8
    • SubModel: CARGO

    1983-1986 FORD LTD

    • Liter: 5.0
    • EngineType: V8
    • SubModel: COUNTRY SQUIRE

    1964-1967 FORD MUSTANG

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

    1967 FORD FAIRLANE

    • Liter: 4.7
    • SubModel: 500
    • CUI: 289
    • EngineType: V8

    1979-1982 FORD E-150 ECONOLINE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CLUB PASSENGER WAGON

    1965 FORD FALCON SEDAN DELIVERY

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8

    1975 FORD F-150

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

    1979-1982 FORD E-150 ECONOLINE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SUPER CARGO

    1990 LINCOLN TOWN CAR

    • EngineType: ALL
    • SubModel: BASE

    1986 LINCOLN CONTINENTAL

    • EngineType: ALL
    • SubModel: BASE

    1964-1967 FORD CUSTOM 500

    • Liter: 4.7
    • EngineType: V8
    • SubModel: BASE

    1969-1974 FORD E-200 ECONOLINE

    • EngineType: V8
    • SubModel: CLUB WAGON

    1969 FORD FALCON

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

    1963 FORD FAIRLANE

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8

    1980 FORD F-100

    • EngineType: V8
    • SubModel: BASE

    1980-1982 FORD BRONCO

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

    1969 FORD GALAXIE 500

    • Liter: 5.0
    • Aspiration: N
    • SubModel: XL
    • Engine Vin: F
    • CUI: 302
    • EngineType: V8

    1983-1986 MERCURY COUGAR

    • EngineType: V8
    • SubModel: BASE

    1968 FORD RANCHERO

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8

    1987-1991 MERCURY COLONY PARK

    • EngineType: ALL
    • SubModel: BASE

    1967 FORD RANCHERO

    • Liter: 4.7
    • EngineType: V8
    • SubModel: 500

    1963 FORD RANCH WAGON

    • Liter: 4.7
    • EngineType: V8
    • SubModel: BASE

    1984-1985 FORD LTD

    • EngineType: V8
    • SubModel: BROUGHAM

    1970 FORD FALCON

    • Liter: 5.0
    • SubModel: FUTURA
    • CUI: 302
    • EngineType: V8

    1974 FORD E-200 ECONOLINE

    • CC: 4949
    • Liter: 5.0
    • SubModel: CUSTOM WAGON
    • EngineType: V8

    1985 FORD E-250 ECONOLINE

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8

    1983 FORD E-100 ECONOLINE

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

    1992-1996 FORD F-150 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SUPER CAB

    1986-1993 FORD MUSTANG

    • EngineType: ALL
    • SubModel: GT

    1970-1974 FORD E-100 ECONOLINE

    • EngineType: V8
    • SubModel: CLUB WAGON

    1992-1996 FORD F-150 PICKUP

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

    1983-1984 FORD E-250 ECONOLINE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: XL

    1979-1982 FORD E-150 ECONOLINE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CARGO

    1980-1986 FORD LTD

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CROWN VICTORIA

    1971-1972 FORD E-200 ECONOLINE

    • EngineType: V8
    • SubModel: CHATEAU WAGON

    1970-1974 FORD RANCHERO

    • Liter: 5.0
    • Aspiration: N
    • SubModel: SQUIRE
    • Engine Vin: F
    • CUI: 302
    • EngineType: V8

    1983 LINCOLN CONTINENTAL

    • EngineType: ALL
    • SubModel: BASE

    1969 FORD BRONCO

    • EngineType: V8
    • SubModel: ROADSTER

    1996 FORD BRONCO

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

    1975 FORD E-350 ECONOLINE

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

    1987-1989 FORD E-250 ECONOLINE

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

    1971-1974 MERCURY COMET

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8

    1975 FORD F-100

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

    1968 MERCURY MONTEGO

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8

    1990-1996 FORD E-150 ECONOLINE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CLUB PASSENGER WAGON

    1981 LINCOLN TOWN CAR

    • EngineType: ALL
    • SubModel: ALL

    1972-1974 FORD F-350

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

    1991-1992 FORD THUNDERBIRD

    • EngineType: V8
    • SubModel: BASE

    1978-1979 FORD GRANADA

    • EngineType: V8
    • SubModel: BASE

    1981-1982 FORD E-150 ECONOLINE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SUPER PASSENGER WAGON

    1985 FORD E-150 ECONOLINE

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8

    1969 FORD FAIRLANE

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

    1975 FORD E-250 ECONOLINE

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

    1968 FORD RANCHERO

    • Liter: 5.0
    • SubModel: GT
    • CUI: 302
    • EngineType: V8

    1969-1974 FORD F-250

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

    1969 FORD FAIRLANE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: 500

    1984 FORD F-150

    • Liter: 5.0
    • EngineType: V8
    • SubModel: XL

    1978-1979 MERCURY MONARCH

    • EngineType: V8
    • SubModel: BASE

    1972-1974 FORD GRAN TORINO

    • Liter: 5.0
    • SubModel: SQUIRE
    • CUI: 302
    • EngineType: V8

    1986 FORD E-250 ECONOLINE

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

    1975-1977 MERCURY MONARCH

    • Liter: 5.0
    • EngineType: V8
    • SubModel: GHIA

    1969 FORD RANCH WAGON

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

    1991-1993 FORD THUNDERBIRD

    • EngineType: V8
    • SubModel: LX

    1977-1979 FORD RANCHERO

    • Liter: 5.0
    • EngineType: V8
    • SubModel: 500

    1968 FORD BRONCO

    • Liter: 4.7
    • SubModel: ROADSTER
    • CUI: 289
    • EngineType: V8

    1977-1979 FORD LTD II

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

    1977-1979 MERCURY COUGAR

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

    1975-1978 FORD MUSTANG II

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8

    1964-1965 FORD GALAXIE

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

    1968 FORD FALCON

    • Liter: 5.0
    • Aspiration: N
    • SubModel: FUTURA
    • Engine Vin: J
    • CUI: 302
    • EngineType: V8

    1984-1985 FORD LTD

    • EngineType: V8
    • SubModel: BASE

    1984 FORD MUSTANG

    • Liter: 5.0
    • SubModel: LX
    • CUI: 302
    • EngineType: V8

    1987-1991 FORD LTD CROWN VICTORIA

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

    1970-1974 FORD RANCHERO

    • Liter: 5.0
    • Aspiration: N
    • SubModel: 500
    • Engine Vin: F
    • CUI: 302
    • EngineType: V8

    1991-1992 MERCURY COUGAR

    • EngineType: ALL
    • SubModel: XR-7

    1979-1989 MERCURY GRAND MARQUIS

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

    1969 FORD COUNTRY SEDAN

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

    1979-1980 FORD E-250 ECONOLINE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CLUB PASSENGER WAGON

    1995 FORD MUSTANG

    • EngineType: ALL
    • SubModel: GTS

    1967 MERCURY COMMUTER

    • Liter: 4.7
    • EngineType: V8
    • SubModel: BASE

    1964-1965 FORD RANCH WAGON

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

    1974 FORD BRONCO

    • CC: 4950
    • Liter: 5.0
    • SubModel: BASE
    • EngineType: V8

    1967 FORD RANCHERO

    • Liter: 4.7
    • EngineType: V8
    • SubModel: 500 XL

    1977 MERCURY COUGAR

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

    1992-1996 FORD F-250 PICKUP

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

    1968 FORD MUSTANG

    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8

    1969-1974 FORD F-100

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

    1972-1973 MERCURY MONTEGO

    • Liter: 5.0
    • SubModel: GT
    • CUI: 302
    • EngineType: V8

    1968 FORD BRONCO

    • Liter: 5.0
    • EngineType: V8
    • SubModel: ROADSTER

    1968 FORD E-200 ECONOLINE

    • EngineType: V8
    • SubModel: CLUB PASSENGER WAGON

    1975-1977 FORD P-500 VAN

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

    1969 MERCURY MONTEGO

    • Liter: 5.0
    • EngineType: V8
    • SubModel: MX

    1963-1967 FORD GALAXIE 500

    • Liter: 4.7
    • EngineType: V8
    • SubModel: BASE

    1979-1982 FORD E-100 ECONOLINE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CLUB PASSENGER WAGON

    1986 LINCOLN MARK VII

    • EngineType: ALL
    • SubModel: BASE

    1976-1986 FORD F-250

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

    1969 FORD TORINO

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SQUIRE
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