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Sealed Power VS-521

Valve Spring Single Spring w/Damper

Sealed Power VS-521

844-VS-521

made in usa
jegs shipping
Ships 03/07/17 if Ordered Today
Sealed Power VS-521 Valve Spring Single Spring w/Damper $6.69
Valve Spring
  • Single Spring w/Damper
  • 1.220" O.D.
  • 1.125" Coil Bind Height

  • Specifications:

    Manufacturer's Part Number:
    VS521

    Valve springs are one of the most critical and overlooked components in your engine. Match these Sealed Power valve springs up to your cam and help your engine to reach its full potential. It does absolutely no good to install a cam that will perform up to 7,000 rpm if you do not have the correct springs. Use the only valve springs that will give the recommended spring pressure with the valve both on the seat and at maximum lift. Sealed Power valve springs are offered in single and dual styles to meet their cam requirements.

    Does Sealed Power VS-521 fit your vehicle?

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    1980 PONTIAC GRAND PRIX

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

    1963-1965 CHEVROLET C10 PANEL

    • EngineType: ALL
    • SubModel: ALL

    1980 GMC K2500 PICKUP

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1975-1978 CHEVROLET G20 VAN

    • CC: 4097
    • Liter: 4.1
    • SubModel: BEAUVILLE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1977 PONTIAC LEMANS

    • Liter: 4.9
    • SubModel: SPORT
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1959 CHEVROLET 3100

    • CC: 4638
    • Liter: 4.6
    • SubModel: 3100
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1959 CHEVROLET 3600

    • CC: 4638
    • Liter: 4.6
    • SubModel: 3600
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1979-1986 GMC K3500 PICKUP

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1975-1982 GMC JIMMY

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1963 GMC PB1000 SERIES VAN

    • EngineType: ALL
    • SubModel: ALL

    1979 BUICK CENTURY

    • Liter: 4.9
    • SubModel: SPORT
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1964-1966 CHEVROLET K10 PICKUP

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

    1966 CHEVROLET BISCAYNE

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1985 CHEVROLET C30 PICKUP

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1967 GMC K1500 PICKUP

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1979 BUICK REGAL

    • Liter: 4.9
    • SubModel: LIMITED
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1977 CHEVROLET EL CAMINO

    • CC: 4097
    • Liter: 4.1
    • SubModel: CLASSIC
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1961-1963 BUICK SPECIAL

    • CC: 3528
    • Liter: 3.5
    • Aspiration: N
    • SubModel: DELUXE
    • CUI: 215
    • EngineType: V8 ( 3.5 L / 215 )

    1964-1966 CHEVROLET K20 PICKUP

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

    1977 PONTIAC ASTRE

    • CC: 2474
    • Liter: 2.5
    • SubModel: BASE
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1973 GMC C15/C1500 SUBURBAN

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1980 PONTIAC SUNBIRD

    • CC: 2474
    • Liter: 2.5
    • SubModel: BASE
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1964-1965 CHEVROLET C30 PICKUP

    • CC: 3769
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1965-1966 STUDEBAKER COMMANDER

    • Liter: 4.7
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.7 L / 283 )

    1964-1966 CHEVROLET MALIBU

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

    1969-1970 CHEVROLET K10 PICKUP

    • CC: 4801
    • Liter: 4.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1977-1978 PONTIAC CATALINA

    • Liter: 4.9
    • SubModel: SAFARI
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1965 PONTIAC TEMPEST

    • CC: 3524
    • Liter: 3.5
    • Aspiration: N
    • SubModel: BASE
    • CUI: 215
    • EngineType: L6 ( 3.5 L / 215 )

    1966-1967 GMC C25/C2500 PICKUP

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1962-1965 CHEVROLET IMPALA

    • CC: 6704
    • Liter: 6.7
    • SubModel: BASE
    • CUI: 409
    • EngineType: V8 ( 6.7 L / 409 )

    1959 CHEVROLET 3700

    • CC: 4638
    • Liter: 4.6
    • SubModel: 3700
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1964-1965 CHEVROLET C20 PICKUP

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

    1972 GMC K25/K2500 PICKUP

    • Liter: 4.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1979 BUICK CENTURY

    • Liter: 4.9
    • SubModel: CUSTOM
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1985 CHEVROLET K20 PICKUP

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1977 PONTIAC VENTURA

    • CC: 2474
    • Liter: 2.5
    • SubModel: BASE
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1955 CHEVROLET CORVETTE

    • CC: 4343
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 265
    • EngineType: V8 ( 4.3 L / 265 )

    1976-1978 GMC G35/G3500 VAN

    • Liter: 4.8
    • SubModel: VANDURA
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1983 AMERICAN MOTORS EAGLE

    • Liter: 2.5
    • SubModel: BASE
    • CUI: 150
    • EngineType: L4 ( 2.5 L / 150 )

    1982 PONTIAC 6000

    • CC: 2474
    • Liter: 2.5
    • SubModel: BASE
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1977 PONTIAC VENTURA

    • Liter: 4.9
    • SubModel: BASE
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1961-1966 CHEVROLET C30 PICKUP

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

    1964 CHEVROLET CORVAIR

    • CC: 2684
    • Liter: 2.7
    • SubModel: BASE
    • CUI: 164
    • EngineType: H6 ( 2.7 L / 164 )

    1985 PONTIAC FIERO

    • CC: 2474
    • Liter: 2.5
    • SubModel: SPORT
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1964-1966 CHEVROLET C10 PICKUP

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

    1979-1984 GMC G25/G2500 VAN

    • Liter: 4.1
    • SubModel: RALLY
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1964-1965 CHEVROLET K10 PICKUP

    • CC: 3769
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1964 CHEVROLET CHEVY II

    • CC: 3769
    • Liter: 3.8
    • SubModel: NOVA
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1975 BUICK APOLLO

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1981 PONTIAC FIREBIRD

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

    1961-1963 BUICK SPECIAL

    • CC: 3528
    • Liter: 3.5
    • Aspiration: N
    • SubModel: BASE
    • CUI: 215
    • EngineType: V8 ( 3.5 L / 215 )

    1962 CHEVROLET P10 SERIES VAN

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

    1960 CHEVROLET CORVAIR

    • EngineType: ALL
    • SubModel: BASE

    1980-1982 AMERICAN MOTORS CONCORD

    • Liter: 2.5
    • SubModel: DL
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1980 BUICK ELECTRA

    • Liter: 4.9
    • SubModel: ESTATE WAGON
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1981 PONTIAC GRAND PRIX

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

    1983 PONTIAC 6000

    • CC: 2474
    • Liter: 2.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: 5
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1974 GMC K35/K3500 PICKUP

    • Liter: 4.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: T
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1966 CHEVROLET C20 PICKUP

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

    1963-1964 GMC PB2500 SERIES VAN

    • EngineType: ALL
    • SubModel: ALL

    1966 CHEVROLET SUBURBAN

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

    1962-1965 CHEVROLET BEL AIR

    • CC: 6704
    • Liter: 6.7
    • SubModel: BASE
    • CUI: 409
    • EngineType: V8 ( 6.7 L / 409 )

    1959-1966 CHEVROLET IMPALA

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

    1969-1972 GMC K35/K3500 PICKUP

    • Liter: 4.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1978-1979 CHEVROLET NOVA

    • CC: 4097
    • Liter: 4.1
    • SubModel: CUSTOM
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1975-1977 PONTIAC LEMANS

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1973-1980 GMC C1500 PICKUP

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1967 CHEVROLET SUBURBAN

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1975-1978 GMC K25 PICKUP

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1975 CHEVROLET MALIBU

    • CC: 4097
    • Liter: 4.1
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: D
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1965-1966 STUDEBAKER COMMANDER

    • Liter: 3.2
    • SubModel: BASE
    • CUI: 194
    • EngineType: L6 ( 3.2 L / 194 )

    1979 CHEVROLET G30 VAN

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1968 GMC K25/K2500 PICKUP

    • CC: 4801
    • Liter: 4.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1979-1980 CHEVROLET K20 PICKUP

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1975-1976 CHEVROLET K10 PICKUP

    • Liter: 4.8
    • SubModel: CHEYENNE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1979 PONTIAC GRAND LEMANS

    • Liter: 4.9
    • SubModel: BASE
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1960-1961 CHEVROLET C40

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

    1979-1980 CHEVROLET C10 PICKUP

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1979 BUICK CENTURY

    • Liter: 4.9
    • SubModel: LIMITED
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1962 BUICK SPECIAL

    • Liter: 3.2
    • SubModel: BASE
    • CUI: 198
    • EngineType: V6 ( 3.2 L / 198 )

    1984-1985 CHEVROLET CITATION II

    • CC: 2474
    • Liter: 2.5
    • SubModel: BASE
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1982 PONTIAC FIREBIRD

    • CC: 2474
    • Liter: 2.5
    • SubModel: S/E
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1975 CHEVROLET CAMARO

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1969 GMC K1500 PICKUP

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1982-1983 OLDSMOBILE CUTLASS CIERA

    • CC: 2474
    • Liter: 2.5
    • SubModel: BROUGHAM
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1959 CHEVROLET 3500

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

    1953-1954 CADILLAC SERIES 62

    • EngineType: ALL
    • SubModel: ALL

    1967 CHEVROLET K20 PICKUP

    • CC: 4801
    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1950-1954 CADILLAC SERIES 75 FLEETWOOD

    • EngineType: ALL
    • SubModel: ALL

    1981-1982 AMERICAN MOTORS EAGLE

    • Liter: 2.5
    • SubModel: DL-50 SX4
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1979 BUICK REGAL

    • Liter: 4.9
    • SubModel: BASE
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1965 CHEVROLET CHEVELLE

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

    1964-1966 CHEVROLET MALIBU

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

    1966 CHEVROLET EL CAMINO

    • CC: 3180
    • Liter: 3.2
    • SubModel: BASE
    • CUI: 194
    • EngineType: L6 ( 3.2 L / 194 )

    1977 PONTIAC FIREBIRD

    • Liter: 4.9
    • SubModel: BASE
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1964 CHEVROLET CHEVELLE

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1985 CHEVROLET K30 PICKUP

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1980 PONTIAC GRAND PRIX

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

    1975-1978 CHEVROLET G20 VAN

    • Liter: 4.8
    • SubModel: SPORTVAN
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1979-1980 GMC K1500 SUBURBAN

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )
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