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COMP Cams Single Outer Valve Springs Rate: 241 lbs

COMP Cams 940-12
Representative Image
Product images may differ from actual product appearance.

249-940-12

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Ships directly from the manufacturer
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COMP Cams Single Outer Valve Springs Rate: 241 lbs $61.99
Single Outer Valve Springs
  • Rate: 241 lbs
  • 1.070'' ID, 1.464'' OD
  • Seat Load: 93 lbs at 1.900''
  • Open Load: 237 lbs at 1.300''
  • Coil Bind Height: 1.200''
  • With Damper
  • 12/pkg

  • Specifications:

    Coil Bind Height (in.)
    1.2
    Coated
    No
    Damper Spring Included
    Yes
    Inside Diameter of Outer Spring (in.)
    1.025
    Number of Springs Per Valve
    Single
    Outside Diameter of Outer Spring (in.)
    1.464
    Quantity
    Sold as a set of 12
    Spring Rate
    241 lbs./in.
    Valve Spring Style
    Standard
    Manufacturer's Part Number:
    940-12

    Comp Cams Valve Springs are tested under stresses much greater than normal to ensure consistency. Isolating an engine's purpose is first when selecting proper springs. Verify load capacity for optimal performance.

    Does COMP Cams 940-12 fit your vehicle?

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    Aspiration

    1978-1979 FORD F-100

    • Fitment_Note: 50-State Legal
    • Liter: 6.6
    • SubModel: RANGER LARIAT
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1966-1967 MERCURY VILLAGER

    • CC: 6391
    • Fitment_Note: 50-State Legal
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1971 MERCURY COUGAR

    • CC: 7030
    • Fitment_Note: 50-State Legal
    • Liter: 7.0
    • SubModel: XR-7
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1966 AMERICAN MOTORS MARLIN

    • CC: 5358
    • Fitment_Note: 50-State Legal
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1976 FORD F-250

    • Fitment_Note: 50-State Legal
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1971-1974 FORD COUNTRY SQUIRE

    • CC: 6556
    • Fitment_Note: 50-State Legal
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1976 FORD F-350

    • Fitment_Note: 50-State Legal
    • Liter: 6.4
    • SubModel: RANGER
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1963 FORD RANCH WAGON

    • CC: 6997
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1969 AMERICAN MOTORS AMBASSADOR

    • CC: 6391
    • Fitment_Note: 50-State Legal
    • Liter: 6.4
    • SubModel: SST
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1968 FORD CUSTOM

    • CC: 6391
    • Fitment_Note: 50-State Legal
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1967-1969 FORD MUSTANG

    • CC: 6391
    • Fitment_Note: 50-State Legal
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1970 MERCURY CYCLONE

    • CC: 5752
    • Liter: 5.8
    • Aspiration: N
    • SubModel: SPOILER
    • Engine Vin: M
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1971 FORD RANCHERO

    • CC: 7030
    • Fitment_Note: 50-State Legal
    • Liter: 7.0
    • Aspiration: N
    • SubModel: SQUIRE
    • Engine Vin: R
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1980-1981 FORD E-250 ECONOLINE CLUB WAGON

    • Liter: 5.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: G
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1973-1974 MERCURY MONTEGO

    • CC: 7539
    • Liter: 7.5
    • SubModel: VILLAGER
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1974 JEEP J10

    • CC: 6572
    • Fitment_Note: 50-State Legal
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 401
    • EngineType: V8 ( 6.6 L / 401 )

    1968-1974 FORD F-350

    • CC: 6392
    • Fitment_Note: 50-State Legal
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1968 FORD COUNTRY SQUIRE

    • CC: 6391
    • Fitment_Note: 50-State Legal
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1968 AMERICAN MOTORS REBEL

    • CC: 5585
    • Fitment_Note: 50-State Legal
    • Liter: 5.6
    • SubModel: 550
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1972-1975 JEEP CJ6

    • Fitment_Note: 50-State Legal
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1963 FORD GALAXIE 500

    • Liter: 6.7
    • SubModel: BASE
    • CUI: 406
    • EngineType: V8 ( 6.7 L / 406 )

    1973 MERCURY MONTEGO

    • CC: 7539
    • Fitment_Note: 50-State Legal
    • Liter: 7.5
    • Aspiration: N
    • SubModel: MX
    • Engine Vin: C
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1963 FORD GALAXIE 500

    • CC: 6391
    • Liter: 6.4
    • SubModel: VICTORIA
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1977 MERCURY COUGAR

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: VILLAGER

    1974-1978 JEEP CHEROKEE (SJ)

    • Fitment_Note: 50-State Legal
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 401
    • EngineType: V8 ( 6.6 L / 401 )

    1970 FORD LTD

    • CC: 7014
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1963-1964 MERCURY MARAUDER

    • CC: 6997
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1963 FORD THUNDERBIRD

    • CC: 6997
    • Fitment_Note: 50-State Legal
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1963-1964 FORD GALAXIE 500

    • CC: 5769
    • Fitment_Note: 50-State Legal
    • Liter: 5.8
    • SubModel: SUNLINER
    • CUI: 352
    • EngineType: V8 ( 5.8 L / 352 )

    1969 FORD THUNDERBIRD

    • CC: 7014
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1963 MERCURY COMMUTER

    • CC: 6654
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 406
    • EngineType: V8 ( 6.6 L / 406 )

    1970 FORD COUNTRY SQUIRE

    • CC: 7014
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1977-1981 FORD F-350

    • Fitment_Note: 50-State Legal
    • Liter: 5.8
    • SubModel: RANGER
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1970 MERCURY COUGAR

    • CC: 7030
    • Liter: 7.0
    • SubModel: XR-7
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1967 FORD RANCH WAGON

    • CC: 5769
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 352
    • EngineType: V8 ( 5.8 L / 352 )

    1975-1976 FORD F-250

    • Fitment_Note: 50-State Legal
    • Liter: 6.4
    • SubModel: RANGER XLT
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1969-1970 JEEP J-2500

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1964-1966 FORD FAIRLANE

    • Fitment_Note: 50-State Legal
    • Liter: 6.4
    • SubModel: 500
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1978 FORD THUNDERBIRD

    • Fitment_Note: 50-State Legal
    • Liter: 6.6
    • SubModel: TOWN LANDAU
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1978 MERCURY GRAND MARQUIS

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: ALL

    1975-1978 FORD F-250

    • Fitment_Note: 50-State Legal
    • Liter: 7.5
    • SubModel: NORTHLAND
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1977-1979 FORD THUNDERBIRD

    • Fitment_Note: 50-State Legal
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1985-1992 FORD F-250

    • Fitment_Note: 50-State Legal
    • Liter: 7.5
    • SubModel: XLT LARIAT
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1963 FORD 300

    • CC: 6391
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1971 MERCURY MONTEGO

    • CC: 7030
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1975-1977 FORD CUSTOM 500

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: ALL

    1964-1966 FORD CUSTOM 500

    • Fitment_Note: 50-State Legal
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 352
    • EngineType: V8 ( 5.8 L / 352 )

    1977 AMERICAN MOTORS HORNET

    • Fitment_Note: 50-State Legal
    • Liter: 5.0
    • SubModel: AMX
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1965 MERCURY MONTCLAIR

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: ALL

    1995 FORD F-350

    • Liter: 7.5
    • SubModel: EDDIE BAUER
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1975-1978 FORD LTD

    • Fitment_Note: 50-State Legal
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1966-1967 MERCURY COMMUTER

    • CC: 6720
    • Liter: 6.7
    • SubModel: BASE
    • CUI: 410
    • EngineType: V8 ( 6.7 L / 410 )

    1977-1982 FORD E-350 ECONOLINE CLUB WAGON

    • Liter: 7.5
    • SubModel: CHATEAU
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1963 FORD THUNDERBIRD

    • CC: 6391
    • Fitment_Note: 50-State Legal
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1977 FORD F-350

    • Fitment_Note: 50-State Legal
    • Liter: 7.5
    • SubModel: XLT
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1975-1976 FORD RANCHERO

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: ALL

    1977 FORD F-350

    • Liter: 6.6
    • Aspiration: N
    • SubModel: XLT
    • Engine Vin: Z
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1966 FORD FAIRLANE

    • CC: 5769
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 352
    • EngineType: V8 ( 5.8 L / 352 )

    1980 LINCOLN CONTINENTAL

    • Liter: 5.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: G
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1978-1979 FORD F-250

    • Fitment_Note: 50-State Legal
    • Liter: 7.5
    • SubModel: RANGER LARIAT
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1964-1968 FORD THUNDERBIRD

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: ALL

    1970 JEEP J-4600

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1968 FORD FAIRLANE

    • CC: 6997
    • Liter: 7.0
    • SubModel: 500
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1977-1979 FORD LTD II

    • Fitment_Note: 50-State Legal
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1970 FORD RANCHERO

    • Fitment_Note: 50-State Legal
    • Liter: 7.0
    • Aspiration: N
    • SubModel: SQUIRE
    • Engine Vin: C
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1970 FORD TORINO

    • CC: 6391
    • Liter: 6.4
    • SubModel: GT
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1965-1966 FORD LTD

    • CC: 5769
    • Fitment_Note: 50-State Legal
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 352
    • EngineType: V8 ( 5.8 L / 352 )

    1965-1966 FORD COUNTRY SQUIRE

    • CC: 6391
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1976 FORD F-350

    • Fitment_Note: 50-State Legal
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1969 AMERICAN MOTORS AMBASSADOR

    • CC: 6391
    • Fitment_Note: 50-State Legal
    • Liter: 6.4
    • SubModel: DPL
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1963 MERCURY METEOR

    • CC: 6391
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1968 AMERICAN MOTORS AMERICAN

    • CC: 5585
    • Liter: 5.6
    • SubModel: 440
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1978-1979 FORD THUNDERBIRD

    • Fitment_Note: 50-State Legal
    • Liter: 5.8
    • SubModel: TOWN LANDAU
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1968 LINCOLN MARK III

    • CC: 7539
    • Fitment_Note: 50-State Legal
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1976 FORD F-100

    • Fitment_Note: 50-State Legal
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1979 FORD F-100

    • Fitment_Note: 50-State Legal
    • Liter: 7.5
    • SubModel: RANGER XLT
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1970 JEEP J-3700

    • EngineType: ALL
    • SubModel: V

    1972-1974 FORD GRAN TORINO

    • CC: 6556
    • Fitment_Note: 50-State Legal
    • Liter: 6.6
    • SubModel: SQUIRE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1966 MERCURY MONTEREY

    • CC: 7014
    • Fitment_Note: 50-State Legal
    • Liter: 7.0
    • SubModel: S-55
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1974 FORD GRAN TORINO

    • CC: 7539
    • Liter: 7.5
    • Aspiration: N
    • SubModel: SPORT
    • Engine Vin: C
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1972-1976 LINCOLN MARK IV

    • Fitment_Note: 50-State Legal
    • EngineType: ALL
    • SubModel: ALL

    1968 FORD MUSTANG

    • CC: 7014
    • Fitment_Note: 50-State Legal
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1970 FORD FAIRLANE

    • CC: 7030
    • Fitment_Note: 50-State Legal
    • Liter: 7.0
    • SubModel: 500
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1968-1969 AMERICAN MOTORS JAVELIN

    • CC: 5585
    • Fitment_Note: 50-State Legal
    • Liter: 5.6
    • SubModel: BASE
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1972 JEEP COMMANDO

    • CC: 4982
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1975 FORD F-100

    • CC: 6391
    • Fitment_Note: 50-State Legal
    • Liter: 6.4
    • SubModel: RANGER
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1974 JEEP CHEROKEE

    • Fitment_Note: 50-State Legal
    • Liter: 5.9
    • SubModel: S
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1970 MERCURY MARQUIS

    • CC: 6391
    • Fitment_Note: 50-State Legal
    • Liter: 6.4
    • SubModel: BROUGHAM
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1963-1966 FORD RANCH WAGON

    • CC: 5769
    • Fitment_Note: 50-State Legal
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 352
    • EngineType: V8 ( 5.8 L / 352 )

    1963 FORD COUNTRY SEDAN

    • CC: 6654
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 406
    • EngineType: V8 ( 6.6 L / 406 )

    1977-1979 FORD F-100

    • Fitment_Note: 50-State Legal
    • Liter: 5.8
    • SubModel: CUSTOM
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1977-1978 FORD F-100

    • Fitment_Note: 50-State Legal
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970 JEEP J-4500

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1970 FORD MUSTANG

    • CC: 7014
    • Liter: 7.0
    • Aspiration: N
    • SubModel: MACH I
    • Engine Vin: P
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1975 FORD F-100

    • CC: 6391
    • Fitment_Note: 50-State Legal
    • Liter: 6.4
    • SubModel: NORTHLAND
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1992-1993 FORD E-350 ECONOLINE CLUB WAGON

    • Liter: 7.5
    • SubModel: CUSTOM HD
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1974 JEEP J20

    • CC: 6572
    • Fitment_Note: 50-State Legal
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 401
    • EngineType: V8 ( 6.6 L / 401 )

    1968-1969 FORD RANCH WAGON

    • CC: 7014
    • Liter: 7.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Q
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1972-1973 MERCURY MONTEGO

    • CC: 6556
    • Fitment_Note: 50-State Legal
    • Liter: 6.6
    • SubModel: GT
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970 FORD MUSTANG

    • CC: 7030
    • Fitment_Note: 50-State Legal
    • Liter: 7.0
    • Aspiration: N
    • SubModel: GRANDE
    • Engine Vin: C
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )
    Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations