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COMP Cams 978-16

Dual Valve Springs I.D. of Outer Dia.: 1.060"

COMP Cams 978-16

249-978-16

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COMP Cams 978-16 Dual Valve Springs I.D. of Outer Dia.: 1.060" $131.99
Dual Valve Springs
  • I.D. of Outer Dia.: 1.060"
  • I.D. of Inner Dia.: .697"
  • Seat load: 127lbs @1.850''
  • Open load: 369lbs @1.250''
  • Coil bind: 1.195''
  • Rate: 403lbs/in
  • With damper
  • 16/pkg

  • COMP Cams 978-16 Details

    1.460'' Outside Diameter Dual Valve Springs

  • Dual Valve Spring
  • Coiled On the Most Advanced CNC Machines
  • 1 Year Limited Warranty

  • Specifications:

    Inside Diameter
    0.697 in.
    Coil Bind Height (in.)
    1.195
    Open Height (in.)
    1.25
    Outside Diameter
    1.460
    Installed Height (in.)
    1.85
    Installed Pressure (lbs.)
    126
    Open Pressure (lbs.)
    368
    Spring Rate (lbs./in.)
    403
    Spring Type
    Double
    Camshaft Type
    Hydraulic
    Camshaft Type
    Mechanical
    Position
    N/A
    Coated
    No
    Damper Spring Included
    Yes
    Inside Diameter of Inner Spring (in.)
    0.697
    Inside Diameter of Outer Spring (in.)
    1.06
    Number of Springs Per Valve
    Dual
    Outside Diameter of Outer Spring (in.)
    1.46
    Quantity
    Sold as a set of 16
    Spring Rate
    403 lbs./in.
    Valve Spring Style
    Standard
    Manufacturer's Part Number:
    978-16

    Comp Cams Dual Valve Springs are designed, manufactured, and tested on some of the most cutting edge equipment in the industry. Their Super Clean Ovate Wire material combined with this manufacturing process ensures consistency and performance. Samples from each batch of springs are tested at stress levels much greater then they will see in any engine. The result of Comp Camps enormous investment in personnel, expertise and equipment is no more evident than in the manufacturing of Comp Cams valve springs. From design to manufacture, Comp Cams delivers advantages to you that are found nowhere else in the industry!

    Does COMP Cams 978-16 fit your vehicle?

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    1979 CHEVROLET K10 SUBURBAN

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

    1966-1969 CHEVROLET C10 SUBURBAN

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

    1974-1980 DODGE RAMCHARGER

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

    1985-1986 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: Z28
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1979-1982 GMC K2500 SUBURBAN

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

    1998 CHEVROLET C2500 PICKUP

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

    1975 DODGE DART

    • Fitment_Note: 50-State Legal
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1994-1998 GMC K2500 SUBURBAN

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

    1987-1991 GMC R2500 SUBURBAN

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1977 CHEVROLET C30 PICKUP

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

    1966 DODGE POLARA

    • Fitment_Note: 50-State Legal
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1980 CHEVROLET CORVETTE

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

    1987 CHEVROLET R20 SUBURBAN

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

    1970-1971 CHEVROLET CHEVELLE

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

    1973 CHEVROLET CAMARO

    • CC: 5737
    • Liter: 5.7
    • SubModel: Z28
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978 CHEVROLET MONZA

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

    1975-1986 CHEVROLET K10 PICKUP

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

    1968 CHEVROLET K20 PICKUP

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

    1983 CHEVROLET MONTE CARLO

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

    1989-1991 CHEVROLET V3500 PICKUP

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: CHEYENNE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1996-1998 CADILLAC DEVILLE

    • EngineType: ALL
    • SubModel: DELEGANCE

    1970-1974 CHECKER MARATHON

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

    1976 PLYMOUTH VALIANT

    • Fitment_Note: 50-State Legal
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1969-1970 CHECKER MARATHON

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

    1977-1979 CHEVROLET G20 VAN

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

    1977-1978 DODGE W300 PICKUP

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

    1976 CHEVROLET IMPALA

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

    1979 PLYMOUTH PB200 VAN

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

    1977-1979 CHEVROLET K10 PICKUP

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

    1975-1978 GMC K25 PICKUP

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

    1998 HOLDEN COMMODORE

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

    1985 CHEVROLET K20 PICKUP

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

    1997-1998 CHEVROLET K2500 PICKUP

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

    1968-1969 CHEVROLET BISCAYNE

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

    1984 GMC G15/G1500 VAN

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

    1961-1965 CHEVROLET K20 SUBURBAN

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

    1984-1986 PONTIAC GRAND PRIX

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

    1975 CHEVROLET CAMARO

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

    1970-1971 CHEVROLET EL CAMINO

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987 CHEVROLET CAMARO

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • EngineType: ALL
    • SubModel: IROC-Z

    1984 GMC K2500 SUBURBAN

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

    1987-1995 GMC G25/G2500 VAN

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: VANDURA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET G20 VAN

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

    1975-1978 GMC K25 SUBURBAN

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

    1978-1979 PONTIAC GRAND PRIX

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

    1969 GMC K15/K1500 SUBURBAN

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

    1999-2002 DODGE RAM 2500

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

    1987 GMC R2500 SUBURBAN

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

    1996-1998 CHEVROLET K1500 PICKUP

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

    1988-1990 GMC C2500 PICKUP

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

    2002 DODGE DAKOTA

    • Liter: 4.7
    • SubModel: SXT
    • CUI: 285
    • EngineType: V8 ( 4.7 L / 285 )

    1969 PLYMOUTH FURY

    • Fitment_Note: 50-State Legal
    • Liter: 5.2
    • SubModel: SPORT
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1972 CHEVROLET CHEVELLE

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

    1995-1997 CHEVROLET K1500 PICKUP

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

    1978-1979 CHEVROLET C30 PICKUP

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

    1981-1984 CHEVROLET G10 VAN

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

    1975-1976 DODGE D200 PICKUP

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

    1987-1988 CHEVROLET R20 SUBURBAN

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

    1973-1974 CHEVROLET G30 VAN

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

    1980 CHEVROLET BLAZER K5

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

    1961 CHEVROLET C10 SUBURBAN

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

    1989-1992 PONTIAC FIREBIRD

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

    1982-1986 CHEVROLET C20 PICKUP

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

    1994 GMC YUKON

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: SPORT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 PLYMOUTH FURY

    • CC: 5900
    • Fitment_Note: 50-State Legal
    • Liter: 5.9
    • SubModel: GRAN COUPE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1977-1978 CHEVROLET K5 BLAZER

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

    1994-1995 CHEVROLET C2500 PICKUP

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: WT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1967 GMC K15/K1500 SUBURBAN

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

    1987 GMC V1500 SUBURBAN

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987-1990 CHEVROLET BLAZER

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

    1976 CHEVROLET K5 BLAZER

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

    1973 CHEVROLET CHEVELLE

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

    1987-1993 GMC G15/G1500 VAN

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.7
    • SubModel: RALLY
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1998-2002 DODGE DAKOTA

    • EngineType: ALL
    • SubModel: R/T

    1975 CHEVROLET LAGUNA

    • Liter: 6.6
    • SubModel: S3
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1958-1959 GMC 150 PICKUP

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

    1979-1980 CHEVROLET K20 SUBURBAN

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

    1970 CHEVROLET K20 PICKUP

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1975-1979 CHEVROLET G30 VAN

    • Liter: 6.6
    • SubModel: HI-CUBE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1978-1979 GMC CABALLERO

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

    1979-1980 GMC C1500 SUBURBAN

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

    1976-1980 CHEVROLET C20 PICKUP

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

    1973-1974 CHEVROLET NOVA

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

    1970 GMC G35/G3500 VAN

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 CHEVROLET C30 PICKUP

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

    1958 CHEVROLET TRUCK

    • CC: 4638
    • Liter: 4.6
    • SubModel: 3500
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1985-1986 GMC C3500 PICKUP

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

    1973 GMC JIMMY

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

    1987 GMC V2500 SUBURBAN

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

    1985 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1982 GMC K2500 PICKUP

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

    1975-1980 CHEVROLET K20 PICKUP

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

    1977-1987 GMC G15/G1500 VAN

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

    1969 DODGE CHARGER

    • Fitment_Note: 50-State Legal
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1966-1967 CHEVROLET K20 SUBURBAN

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

    1969-1970 DODGE W100 PICKUP

    • Fitment_Note: 50-State Legal
    • Liter: 5.2
    • SubModel: BASE
    • CUI: 318
    • EngineType: V8 ( 5.2 L / 318 )

    1988-1995 GMC G25/G2500 VAN

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: VANDURA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1968-1969 CHEVROLET EL CAMINO

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

    1987-1988 PONTIAC FIREBIRD

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

    1994-1995 GMC K2500 PICKUP

    • Fitment_Note: Requires Machining On Cylinder Heads~50-State Legal
    • Liter: 5.0
    • SubModel: SIERRA SL
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )
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