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Ford Performance M-6303-C340

Crankshaft 302/5.0L



Ford Performance M-6303-C340

Part Number: 397-M-6303-C340

Crankshaft
  • 302/5.0L
  • Forged Steel
  • 3.40" Stroke
  • 2.248" Main Journal
  • 2.1232" Rod Journal
  • 1.690" Rod Journal Width
  • Requires Balancing
  • $757.99
    Ships 10/03/16
    if Ordered Today
    Made In USA
    FREE Shipping
    Ford Performance M-6303-C340 Crankshaft 302/5.0L $757.99

    Ford Performance M-6303-C340 Details

    Crankshafts

    Fits 302 production and Ford Racing cylinder blocks. Stock 2.1232" rod journal diameters. Use with M-6200-D50 "Sportsman" rods (5.40" long) and 1.090" CD pistons in standard 302 block for 347 cu. in.

    Features:
  • Lightening holes
  • Rounded CW leading edge, tapered trailing edge
  • Rod and main journals are nitrided and polished
  • Requires custom pistons, rods and balancing

  • Specifications:

    Pin Diameter
    2.1
    Bob Weight
    N/A
    Main Diameter
    OEM
    Rod Length
    OEM
    Stroke
    3.2 - 3.5
    Balancer Bolt Thread Size (in.)
    5/8-18
    Crankshaft Material
    Forged 4340 steel
    Crankshaft Snout Style
    Standard
    Engine Balance (oz.)
    External, 28 imbalance
    Engine Stroke (in.)
    3.4
    Lightened
    No
    Main Bearings Included
    No
    Main Journal Diameter (in.)
    2.248
    Quantity
    Sold individually
    Requires Narrow Bearings
    No
    Rod Bearings Included
    No
    Rod Journal Diameter (in.)
    2.123
    Rear Main Seal Style
    1-piece
    Weight (lbs.)
    60
    Manufacturer's Part Number:
    M-6303-C340

    Crafted from forged steel, these crankshafts are specially designed for the harsh environment of the race track. Available for the Mustang Boss 302, Cobra Jets, and the SVT Lightning, Ford Racing forged crankshafts are the answer to your long term crankshaft performance issues. Ford Racing crankshafts are ready to go into your Boss 302 or 5.4L Ford Racing Engine.

    Features
  • Forged Steel Construction For Superior Durability And Extended Service Life
  • Standard Journal Diameters For Maximum Compatibility
  • Service Replacements For Mustang Boss 302, Cobra Jet 5.4L, And SVT Lightning 5.4L

  • Does Ford Performance M-6303-C340 fit your vehicle?

    Narrow Results

    1979-1982 MERCURY MARQUIS

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

    1968-1969 FORD LTD

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

    1979-1982 MERCURY MARQUIS

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

    1978-1979 MERCURY ZEPHYR

    • EngineType: V8
    • SubModel: BASE

    1971-1972 FORD LTD

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

    1975 FORD E-150 ECONOLINE

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

    1975-1977 FORD GRANADA

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

    1982 LINCOLN CONTINENTAL

    • EngineType: V8
    • SubModel: BASE

    1993 FORD MUSTANG

    • EngineType: ALL
    • SubModel: SVT COBRA R

    1971-1972 FORD COUNTRY SEDAN

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

    1980 FORD F-100

    • EngineType: V8
    • SubModel: RANGER LARIAT

    1986 FORD LTD

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

    1970 FORD LTD

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

    1982 FORD F-150

    • Liter: 5.0
    • EngineType: V8
    • SubModel: XLT LARIAT

    1974 FORD E-200 ECONOLINE

    • Liter: 5.0
    • SubModel: CUSTOM WAGON
    • CUI: 302
    • EngineType: V8

    1970 MERCURY CYCLONE

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

    1984-1985 FORD LTD

    • EngineType: V8
    • SubModel: BASE

    1970 MERCURY COUGAR

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

    1984-1985 LINCOLN CONTINENTAL

    • EngineType: V8
    • SubModel: BASE

    1984-1985 FORD THUNDERBIRD

    • EngineType: V8
    • SubModel: FILA

    1979-1982 FORD E-150 ECONOLINE

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

    1971 FORD CUSTOM 500

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

    1979-1981 FORD F-150

    • Liter: 5.0
    • EngineType: V8
    • SubModel: RANGER

    1981-1983 LINCOLN MARK VI

    • EngineType: ALL
    • SubModel: ALL

    1982 FORD F-100

    • Liter: 5.0
    • EngineType: V8
    • SubModel: XLS

    1977-1979 FORD LTD II

    • Liter: 5.0
    • EngineType: V8
    • SubModel: S

    1980 MERCURY MONARCH

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

    1979-1981 FORD F-150

    • Liter: 5.0
    • EngineType: V8
    • SubModel: RANGER LARIAT

    1968-1969 FORD FAIRLANE

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

    1995-1996 FORD F-150

    • Liter: 5.0
    • EngineType: V8
    • SubModel: EDDIE BAUER

    1968-1969 FORD RANCH WAGON

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

    1977-1979 FORD LTD II

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

    1980 LINCOLN CONTINENTAL

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

    1987-1991 FORD COUNTRY SQUIRE

    • EngineType: ALL
    • SubModel: ALL

    1983-1984 FORD E-150 ECONOLINE CLUB WAGON

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

    1982-1983 FORD F-250

    • Liter: 5.0
    • EngineType: V8
    • SubModel: XLS

    1979-1980 FORD E-250 ECONOLINE CLUB WAGON

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CHATEAU

    1972 FORD CUSTOM 500

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

    1977-1978 FORD LTD II

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

    1984-1986 FORD E-150 ECONOLINE CLUB WAGON

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

    1987-1992 FORD F-150

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

    1991-1993 FORD THUNDERBIRD

    • EngineType: V8
    • SubModel: LX

    1979-1981 MERCURY GRAND MARQUIS

    • Liter: 5.0
    • EngineType: V8
    • SubModel: COLONY PARK

    1985 FORD E-150 ECONOLINE

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

    1984-1985 LINCOLN CONTINENTAL

    • EngineType: V8
    • SubModel: GIVENCHY

    1979 MERCURY CAPRI

    • EngineType: V8
    • SubModel: BASE

    1979 FORD E-250 ECONOLINE

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

    1983 FORD THUNDERBIRD

    • EngineType: V8
    • SubModel: HERITAGE

    1975-1977 FORD MAVERICK

    • EngineType: V8
    • SubModel: GRABBER

    1992-1996 FORD E-150 ECONOLINE CLUB WAGON

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CHATEAU

    1969 FORD E-100 ECONOLINE

    • EngineType: ALL
    • SubModel: CLUB PASSENGER WAGON

    1971-1974 FORD E-300 ECONOLINE

    • EngineType: V8
    • SubModel: CHATEAU WAGON

    1969-1974 FORD F-100

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

    1974 FORD E-200 ECONOLINE

    • CC: 4950
    • Liter: 5.0
    • SubModel: CUSTOM WAGON
    • CUI: 302
    • EngineType: V8

    1986 FORD LTD

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

    1982-1985 MERCURY GRAND MARQUIS

    • EngineType: ALL
    • SubModel: COLONY PARK

    1972-1974 FORD F-350

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

    1975-1977 MERCURY MONARCH

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

    1983-1988 MERCURY COUGAR

    • EngineType: V8
    • SubModel: LS

    1983-1986 FORD F-250

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

    1976 MERCURY MONARCH

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

    1982 FORD MUSTANG

    • Liter: 5.0
    • EngineType: V8
    • SubModel: GL

    1979-1980 FORD F-350

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

    1970-1974 MERCURY MONTEGO

    • Liter: 5.0
    • EngineType: V8
    • SubModel: VILLAGER

    1979-1981 FORD F-150

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

    1992 FORD F-250

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

    1986 MERCURY GRAND MARQUIS

    • Liter: 5.0
    • EngineType: V8
    • SubModel: COLONY PARK

    1970 FORD GALAXIE 500

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

    1982-1996 FORD F-150

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

    1968 FORD FALCON

    • CC: 4949
    • Liter: 5.0
    • SubModel: BASE
    • EngineType: V8

    1982 FORD MUSTANG

    • Liter: 5.0
    • EngineType: V8
    • SubModel: L

    1970-1972 FORD GALAXIE 500

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

    1979-1982 FORD E-150 ECONOLINE CLUB WAGON

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

    1977-1981 FORD THUNDERBIRD

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

    1979-1982 FORD E-100 ECONOLINE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CHATEAU

    1968 FORD COUNTRY SEDAN

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

    1985 FORD E-150 ECONOLINE CLUB WAGON

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

    1982-1983 FORD MUSTANG

    • EngineType: ALL
    • SubModel: GT

    1983-1984 FORD E-150 ECONOLINE

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

    1982 LINCOLN CONTINENTAL

    • EngineType: V8
    • SubModel: GIVENCHY

    1982 FORD F-250

    • Liter: 5.0
    • EngineType: V8
    • SubModel: XLT LARIAT

    1968 FORD E-100 ECONOLINE

    • EngineType: V8
    • SubModel: BASE

    1983-1984 FORD E-250 ECONOLINE

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

    1978-1979 FORD FAIRMONT

    • EngineType: V8
    • SubModel: FUTURA

    1968-1974 FORD TORINO

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

    1979-1980 FORD E-250 ECONOLINE CLUB WAGON

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

    1983-1984 FORD F-150

    • Liter: 5.0
    • EngineType: V8
    • SubModel: XLT

    1970 FORD E-300 ECONOLINE

    • CC: 4950
    • Liter: 5.0
    • SubModel: CHATEAU WAGON
    • CUI: 302
    • EngineType: V8

    1987-1991 MERCURY GRAND MARQUIS

    • EngineType: ALL
    • SubModel: GS

    1969 FORD E-100 ECONOLINE

    • EngineType: ALL
    • SubModel: CARGO

    1984-1986 FORD E-150 ECONOLINE

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

    1991-1992 FORD THUNDERBIRD

    • EngineType: V8
    • SubModel: BASE

    1983 FORD E-100 ECONOLINE CLUB WAGON

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

    1979-1982 FORD E-150 ECONOLINE CLUB WAGON

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CHATEAU

    1991-1992 MERCURY COUGAR

    • EngineType: V8
    • SubModel: LS

    1975 FORD F-250

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

    1979-1980 FORD E-250 ECONOLINE

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

    1977 LINCOLN VERSAILLES

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

    1980 FORD F-150

    • EngineType: V8
    • SubModel: SUPER CAB

    1971-1972 FORD LTD

    • CC: 4949
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BROUGHAM
    • Engine Vin: D
    • CUI: 302
    • EngineType: V8
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