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COMP Cams 947-1

Hi-Tech Triple Valve Spring O.D.: 1.645"

COMP Cams 947-1

249-947-1

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COMP Cams 947-1 Hi-Tech Triple Valve Spring O.D.: 1.645" $22.99
Hi-Tech Triple Valve Spring
  • O.D.: 1.645"
  • I.D.: .635"
  • Seat Load: 338 lbs/in @ 2.000
  • Open Load: 849 lbs/in @1.250
  • Coil Bind: 1.145"
  • Rate: 681 lbs/in.
  • 1/pkg.

  • COMP Cams 947-1 Details

    Hi-Tech Triple Valve Springs

  • Proprietary Alloy
  • Maintain Higher Loads
  • 1 Year Limited Warranty

  • Specifications:

    Inside Diameter
    0.635 in.
    Coil Bind Height (in.)
    1.145
    Open Height (in.)
    1.25
    Outside Diameter
    1.645
    Installed Height (in.)
    2.05
    Installed Pressure (lbs.)
    304
    Spring Rate (lbs./in.)
    681
    Open Pressure (lbs.)
    848
    Camshaft Type
    Hydraulic
    Camshaft Type
    Mechanical
    Spring Type
    Triple
    Position
    N/A
    Coated
    No
    Damper Spring Included
    No
    Inside Diameter of Inner Spring (in.)
    0.635
    Inside Diameter of Outer Spring (in.)
    1.195
    Number of Springs Per Valve
    Triple
    Outside Diameter of Outer Spring (in.)
    1.645
    Quantity
    Sold individually
    Spring Rate
    681 lbs./in.
    Valve Spring Style
    Standard
    Manufacturer's Part Number:
    947-1

    Triple Valve Springs from Comp Cams deliver maximum strength, durability and valve train stability. Engineered from Super Clean wire and subjected to extensive quality control measures, the triple spring design creates a stronger valve spring that can easily handle the increased lift and extreme demands found in aggressive applications. Comp Cams Triple Valve Springs exceed the expectations of today's engine builders and racers!

    Does COMP Cams 947-1 fit your vehicle?

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    1978-1980 GMC C1500 PICKUP

    • Liter: 5.0
    • SubModel: HEAVY HALF
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1969-1970 DODGE CORONET

    • CC: 7211
    • Liter: 7.2
    • SubModel: 500
    • CUI: 440
    • EngineType: V8 ( 7.2 L / 440 )

    1975 PLYMOUTH VALIANT

    • Liter: 5.2
    • SubModel: CUSTOM
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1994-1996 CHEVROLET G30 VAN

    • Liter: 6.5
    • SubModel: CHEVY VAN
    • CUI: 395
    • EngineType: V8 ( 6.5 L / 395 )

    1981 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: DELUXE

    1959 PLYMOUTH SAVOY

    • CC: 5917
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 361
    • EngineType: V8 ( 5.9 L / 361 )

    1972-1980 DODGE B300 VAN

    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1973-1974 CHEVROLET CAPRICE

    • CC: 6556
    • Liter: 6.6
    • SubModel: ESTATE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1959 PLYMOUTH BELVEDERE

    • CC: 5917
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 361
    • EngineType: V8 ( 5.9 L / 361 )

    1975-1986 CHEVROLET C30 PICKUP

    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1974 FORD GRAN TORINO

    • CC: 7539
    • Fitment_Note: 50-State Legal~Special Seals Available
    • Liter: 7.5
    • Aspiration: N
    • SubModel: BROUGHAM
    • Engine Vin: A
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1977-1979 FORD LTD II

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

    1958 CHRYSLER NEWPORT

    • CC: 6425
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 392
    • EngineType: V8 ( 6.4 L / 392 )

    1964-1967 PONTIAC BEAUMONT

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1977-1979 CHEVROLET G10 VAN

    • CC: 5031
    • Liter: 5.0
    • SubModel: CHEVY VAN
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1971 DODGE POLARA

    • CC: 5900
    • Liter: 5.9
    • SubModel: CUSTOM
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1979-1980 CHEVROLET C20 SUBURBAN

    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1958-1959 GMC 370

    • CC: 5272
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 322
    • EngineType: V8 ( 5.3 L / 322 )

    1969-1970 DODGE MONACO

    • EngineType: ALL
    • SubModel: ALL

    1968 GMC C15/C1500 SUBURBAN

    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1985 PONTIAC FIREBIRD

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

    1979-1982 GMC K3500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA GRANDE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 PLYMOUTH FURY

    • CC: 5212
    • Liter: 5.2
    • SubModel: SUBURBAN
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1972-1975 GMC G15/G1500 VAN

    • Liter: 5.7
    • SubModel: RALLY
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1962 DODGE CUSTOM

    • CC: 6769
    • Liter: 6.7
    • SubModel: BASE
    • CUI: 413
    • EngineType: V8 ( 6.7 L / 413 )

    1966-1967 CHEVROLET K20 SUBURBAN

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

    1970 MERCURY MONTEGO

    • CC: 7030
    • Fitment_Note: 50-State Legal~Special Seals Available
    • Liter: 7.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: N
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1969-1971 LINCOLN MARK III

    • Fitment_Note: 50-State Legal~Special Seals Available
    • EngineType: ALL
    • SubModel: ALL

    1980 PONTIAC GRAND PRIX

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 265
    • EngineType: V8 ( 4.3 L / 265 )

    1978 PONTIAC GRAND PRIX

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1974-1975 DODGE CB300 VAN

    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1980-1986 CHEVROLET K30 PICKUP

    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1976-1979 CHEVROLET C30 PICKUP

    • Liter: 6.6
    • SubModel: CHEYENNE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1981 PONTIAC LEMANS

    • Liter: 4.3
    • SubModel: SAFARI
    • CUI: 265
    • EngineType: V8 ( 4.3 L / 265 )

    1975-1982 GMC C1500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA GRANDE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980-1981 BUICK CENTURY

    • Liter: 4.3
    • SubModel: LIMITED
    • CUI: 265
    • EngineType: V8 ( 4.3 L / 265 )

    1966-1967 CHEVROLET MALIBU

    • CC: 6489
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1970-1971 FORD TORINO

    • CC: 5753
    • Liter: 5.8
    • Aspiration: N
    • SubModel: GT
    • Engine Vin: M
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1971-1973 DODGE DART

    • CC: 5572
    • Liter: 5.6
    • SubModel: BASE
    • CUI: 340
    • EngineType: V8 ( 5.6 L / 340 )

    1971-1974 DODGE B200 VAN

    • CC: 6555
    • Liter: 6.6
    • SubModel: SPORTSMAN
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1993 GMC K1500

    • Liter: 5.0
    • SubModel: SIERRA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1980 CHRYSLER CORDOBA

    • Liter: 5.2
    • SubModel: CROWN
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1981-1986 CHEVROLET EL CAMINO

    • CC: 5031
    • Liter: 5.0
    • SubModel: CONQUISTA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1973 CHEVROLET CHEVELLE

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: DELUXE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1978 GMC C15 SUBURBAN

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1985 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: TRANS AM

    1977-1978 GMC C25 SUBURBAN

    • Liter: 5.0
    • SubModel: SIERRA GRANDE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1969 FORD MUSTANG

    • CC: 5753
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1973 DODGE DART

    • CC: 5572
    • Liter: 5.6
    • SubModel: SPORT
    • CUI: 340
    • EngineType: V8 ( 5.6 L / 340 )

    1972 CHEVROLET BROOKWOOD

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976-1977 DODGE ASPEN

    • Liter: 5.2
    • SubModel: CUSTOM
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1960 CHEVROLET K20 PICKUP

    • CC: 5704
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 348
    • EngineType: V8 ( 5.7 L / 348 )

    1982 FORD F-350

    • Liter: 5.8
    • SubModel: CUSTOM
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1994 CHEVROLET C1500 PICKUP

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 395
    • EngineType: V8 ( 6.5 L / 395 )

    1987-1988 GMC R3500 PICKUP

    • Liter: 6.2
    • SubModel: SIERRA CLASSIC
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1979-1982 GMC C2500 SUBURBAN

    • Liter: 5.7
    • SubModel: SIERRA CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1978 MERCURY MARQUIS

    • Fitment_Note: 50-State Legal~Special Seals Available
    • Liter: 7.5
    • SubModel: BROUGHAM
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1975-1976 FORD LTD

    • Fitment_Note: 50-State Legal~Special Seals Available
    • Liter: 7.5
    • SubModel: BROUGHAM
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1982-1986 GMC K3500 PICKUP

    • Liter: 6.2
    • SubModel: BASE
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1977-1983 FORD E-350 ECONOLINE CLUB WAGON

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

    1994 CADILLAC ELDORADO

    • EngineType: ALL
    • SubModel: BASE

    1999 CHEVROLET C2500 PICKUP

    • Liter: 7.4
    • SubModel: LS
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1966-1972 FARGO W200 PICKUP

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1976 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: LT RALLY SPORT

    1982 OLDSMOBILE CUTLASS SUPREME

    • Liter: 4.4
    • SubModel: BROUGHAM
    • CUI: 267
    • EngineType: V8 ( 4.4 L / 267 )

    1981 PLYMOUTH PB150 VAN

    • Liter: 5.2
    • SubModel: VOYAGER
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1990 CADILLAC BROUGHAM

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969-1974 FORD CUSTOM 500

    • CC: 5753
    • Liter: 5.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1958-1959 GMC 350-8

    • CC: 5522
    • Liter: 5.5
    • SubModel: BASE
    • CUI: 337
    • EngineType: V8 ( 5.5 L / 337 )

    1982 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1969 FORD RANCHERO

    • CC: 5753
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1986-1987 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: TRANS AM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975-1980 CHEVROLET C10 SUBURBAN

    • Liter: 7.4
    • SubModel: SILVERADO
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975 PONTIAC GRAND LEMANS

    • Liter: 6.6
    • SubModel: SAFARI
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1968 CHEVROLET CHEVELLE

    • Liter: 5.4
    • SubModel: 300 DELUXE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1969 MERCURY CYCLONE

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

    1969-1970 DODGE CHARGER

    • CC: 5212
    • Liter: 5.2
    • SubModel: 500
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1998 DODGE RAM 2500

    • CC: 5899
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1968 PLYMOUTH VALIANT

    • CC: 5212
    • Liter: 5.2
    • SubModel: SIGNET
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1977 GMC C1500 PICKUP

    • Liter: 5.7
    • SubModel: INDY HAULER
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 GMC C25/C2500 SUBURBAN

    • CC: 6489
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1972-1974 DODGE B100 VAN

    • Liter: 5.2
    • SubModel: SPORTSMAN
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1982 OLDSMOBILE CUTLASS SUPREME

    • Liter: 4.4
    • SubModel: BASE
    • CUI: 267
    • EngineType: V8 ( 4.4 L / 267 )

    1976 GMC JIMMY

    • Liter: 7.4
    • SubModel: SIERRA GRANDE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 CHEVROLET CAPRICE

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CLASSIC
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969 CHEVROLET BROOKWOOD

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

    1960-1968 PLYMOUTH BELVEDERE

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1968 DODGE CORONET

    • CC: 5212
    • Liter: 5.2
    • SubModel: 500
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1995-1998 DODGE B2500 VAN

    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1967 GMC K25/K2500 SUBURBAN

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1966 DODGE POLARA

    • CC: 6286
    • Liter: 6.3
    • SubModel: BASE
    • CUI: 383
    • EngineType: V8 ( 6.3 L / 383 )

    1973 CHEVROLET EL CAMINO

    • CC: 5031
    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1994-1995 CHEVROLET K2500 PICKUP

    • Liter: 5.7
    • SubModel: WT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1988-1995 GMC C2500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA SLE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1960-1967 DODGE W200 PICKUP

    • CC: 5212
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1967-1969 CHEVROLET K20 PICKUP

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

    1963-1965 CHEVROLET C10 SUBURBAN

    • CC: 5704
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 348
    • EngineType: V8 ( 5.7 L / 348 )

    1970-1971 CHEVROLET C20 SUBURBAN

    • CC: 6588
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1972 CHRYSLER NEWPORT

    • EngineType: ALL
    • SubModel: ALL

    1979-1980 CHEVROLET MALIBU

    • Liter: 4.4
    • SubModel: ESTATE
    • CUI: 267
    • EngineType: V8 ( 4.4 L / 267 )
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