Camshafts & Valvetrains

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Browse our selection of camshaft and valvetrain components and select the one that matches your application and performance goals. 

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  • MELVS-730 Valve Spring

    Melling

    Part #: VS-730

    MELVS-730 Valve Spring

    Engine Make: Melling Engine Parts
    pdm:Grade Type: Standard Replacement
    pdm:Coil Bind Height: 1.394 IN
    pdm:Installed Height: 1.94 IN
    pdm:Inside Diameter: 0.872 IN
    pdm:Material: Corrosion Resistant Steel
    pdm:line_code: MEL
    pdm:Coil Bind Height: 35.0 MM
    pdm:Inside Diameter: 22.0 MM
    pdm:Installed Height: 49.0 MM
    pdm:Open Pressure: 160.0 PS
    pdm:Installed Pressure: 63.0 PS
    pdm:Spring Open Height: 1.496 IN
    pdm:internal_sku: MELVS-730
    pdm:Outside Diameter: 31.0 MM
    pdm:Outside Diameter: 1.212 IN
    pdm:Spring Open Height: 38.0 MM
    pdm:Spring Type: Single Spring
    $4.73
  • MELVS-800 Valve Spring

    Melling

    Part #: VS-800

    MELVS-800 Valve Spring

    Engine Make: Melling Engine Parts
    pdm:Coil Bind Height: 29.0 MM
    pdm:Grade Type: Standard Replacement
    pdm:Inside Diameter: 1.01 IN
    pdm:Coil Bind Height: 1.16 IN
    pdm:Spring Open Height: 1.22 IN
    pdm:Open Pressure: 200.0 PS
    pdm:Material: Corrosion Resistant Steel
    pdm:Outside Diameter: 1.394 IN
    pdm:Outside Diameter: 35.0 MM
    pdm:Inside Diameter: 26.0 MM
    pdm:internal_sku: MELVS-800
    pdm:Spring Open Height: 31.0 MM
    pdm:Spring Type: Single Spring
    pdm:line_code: MEL
    $3.25

  • Melling Engine Parts

    Part #: VS-800-BK

    MELVS-800-BK VS-800-BK

    Engine Make: Melling Engine Parts
    $2.54
  • MELVS-820 Valve Spring

    Melling

    Part #: VS-820

    MELVS-820 Valve Spring

    Engine Make: Melling Engine Parts
    pdm:Grade Type: Standard Replacement
    pdm:Inside Diameter: 1.0 IN
    pdm:Material: Corrosion Resistant Steel
    pdm:Outside Diameter: 36.0 MM
    pdm:Coil Bind Height: 34.0 MM
    pdm:Open Pressure: 226.0 PS
    pdm:Outside Diameter: 1.4 IN
    pdm:Coil Bind Height: 1.33 IN
    pdm:Spring Open Height: 35.0 MM
    pdm:Spring Open Height: 1.39 IN
    pdm:Inside Diameter: 25.0 MM
    pdm:Spring Type: Single Spring
    pdm:internal_sku: MELVS-820
    pdm:line_code: MEL
    $3.94
  • MELVS-840 Valve Spring

    Melling

    Part #: VS-840

    MELVS-840 Valve Spring

    Engine Make: Melling Engine Parts
    pdm:Inside Diameter: 25.0 MM
    pdm:Coil Bind Height: 32.0 MM
    pdm:Outside Diameter: 35.0 MM
    pdm:Coil Bind Height: 1.275 IN
    pdm:Open Pressure: 229.0 PS
    pdm:Spring Type: Single Spring
    pdm:Material: Corrosion Resistant Steel
    pdm:Spring Open Height: 34.0 MM
    pdm:Grade Type: Standard Replacement
    pdm:Inside Diameter: 0.99 IN
    pdm:Outside Diameter: 1.39 IN
    pdm:Spring Open Height: 1.33 IN
    pdm:line_code: MEL
    pdm:internal_sku: MELVS-840
    $3.30
  • MELVS-960 Valve Spring

    Melling

    Part #: VS-960

    MELVS-960 Valve Spring

    Engine Make: Melling Engine Parts
    pdm:Coil Bind Height: 32.0 MM
    pdm:Inside Diameter: 0.99 IN
    pdm:Coil Bind Height: 1.26 IN
    pdm:Material: Corrosion Resistant Steel
    pdm:Grade Type: Standard Replacement
    pdm:Outside Diameter: 1.39 IN
    pdm:Inside Diameter: 25.0 MM
    pdm:Spring Open Height: 36.0 MM
    pdm:Open Pressure: 197.0 PS
    pdm:Spring Open Height: 1.4 IN
    pdm:Outside Diameter: 35.0 MM
    pdm:line_code: MEL
    pdm:internal_sku: MELVS-960
    pdm:Spring Type: Dual Spring
    $5.14

  • Melling Engine Parts

    Part #: VS-960-BK

    MELVS-960-BK VS-960-BK

    Engine Make: Melling Engine Parts
    $3.95
  • MELVS-970 Valve Spring

    Melling

    Part #: VS-970

    MELVS-970 Valve Spring

    Engine Make: Melling Engine Parts
    pdm:Inside Diameter: 0.955 IN
    pdm:Coil Bind Height: 1.225 IN
    pdm:Outside Diameter: 34.0 MM
    pdm:Spring Open Height: 1.4 IN
    pdm:Outside Diameter: 1.355 IN
    pdm:Coil Bind Height: 31.0 MM
    pdm:Spring Open Height: 36.0 MM
    pdm:Material: Corrosion Resistant Steel
    pdm:Inside Diameter: 24.0 MM
    pdm:Open Pressure: 208.0 PS
    pdm:Grade Type: Standard Replacement
    pdm:line_code: MEL
    pdm:Spring Type: Single Spring
    pdm:internal_sku: MELVS-970
    $2.87
  • Mutha Thumpr SBC Flat Tappet Hydraulic Cam CMP12-601-4 MT 235/249 HFTSBC

    COMP Cams

    Part #: 12-601-4

    Mutha Thumpr SBC Flat Tappet Hydraulic Cam CMP12-601-4 MT 235/249 HFTSBC

    Engine Make: Competition Cams
    pdm:Assembly Lubricant Included: Yes
    pdm:Advertised Exhaust Duration: 305 DD
    pdm:Advertised Intake Duration: 287 DD
    pdm:Basic Operating RPM Range: 2,200-6,100 R3
    pdm:Cam Type: Hydraulic Flat Tappet
    pdm:Exhaust Duration at .050 inch Lift: 249 DD
    pdm:Intake Duration at .050 Inch Lift: 235 DD
    pdm:Camshaft Gear Attachment: 3-Bolt
    pdm:Valve Springs Required: Yes
    pdm:Intake Valve Lift: 0.489 IN
    pdm:Lifters Included: No
    pdm:Exhaust Valve Lift: 0.476 IN
    pdm:Lifter Type: Hydraulic Flat Tappet
    pdm:Usage: Street/Strip
    pdm:line_code: CMP
    pdm:Grind Number: 287TH7
    pdm:Camshaft Material: Cast Iron
    pdm:internal_sku: CMP12-601-4
    pdm:Lobe Separation: 107 DD
    pdm:Amazon ASIN: B002EE69M8
    pdm:K-Kit Upgrade: K12-601-4
    pdm:C.A.R.B. E.O. Number: N/A
    pdm:C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?: Yes, but must be a race/competition only vehicle.
    pdm:C.A.R.B. Exempt for On-Road Vehicles?: No
    pdm:C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of vehicle.
    pdm:Cam, Lifter and Gear Drive Upgrade: GK12-601-4
    pdm:Cam and Lifter Kit Upgrade: CL12-601-4
    pdm:Camshaft Series: Thumpr
    pdm:Engine Family: Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
    pdm:Title: Mutha' Thumpr 235/249 Hydraulic Flat Cam for Chevrolet Small Block
    pdm:California Proposition 65: WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
    pdm:C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?: Yes, but must meet tailpipe emission standards for year of vehicle.
    pdm:C.A.R.B. Exemption Reason: N/A
    pdm:C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of vehicle.
    $288.95

  • S.B. International

    Part #: 184-1038

    NUT

    Engine Make: S.B. International
    $0.43

  • S.B. International

    Part #: 184-1040

    NUT 184-1040

    Engine Make: S.B. International
    $0.53

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