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COMP Cams GK08-602-8

Big Mutha Thumpr Hydraulic Roller Camshaft/Lifter/Gear Drive Small Block Chevy 1987-02 Lift: .533"/.519"

COMP Cams GK08-602-8

249-GK08-602-8

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Estimated ship date 06/13/17 if Ordered Today
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COMP Cams GK08-602-8 Big Mutha Thumpr Hydraulic Roller Camshaft/Lifter/Gear Drive Small Block Chevy 1987-02 Lift: .533"/.519" $673.99
Big Mutha Thumpr Hydraulic Roller Camshaft/Lifter/Gear Drive
Small Block Chevy 1987-02
  • Lift: .533"/.519"
  • Duration: 299°/319°
  • Lobe Separation Angle: 107°
  • RPM Range: 2500-6200

  • COMP Cams GK08-602-8 Details

    Chevy 262-400ci Small Block 1987-98 -Factory Roller Block

  • Big Mutha Thumpr

    Stock springs cannot be used

  • Grind Number: 299THR7
  • Camshaft/Lifter/Gear Drive Kit
  • Precision Machined
  • Heat treated Billet Steel Gears
  • 3-Way Crank Sprocket
  • 4 deg. Maximum Advance Or Retard
  • Ready To Install Kit Incl. Bolts And Lock Plates
  • Perfect Addition For Street Performance Vehicles
  • 1 Year Limited Warranty

  • Specifications:

    Exhaust Valve Lift (in.)
    0.519
    Intake Valve Lift (in.)
    0.533
    RPM Range
    1900-5600
    Int. Duration @ .050 in. (Deg)
    243
    Exh. Duration @ .050 in. (Deg)
    257
    Int. Duration Advertised (Deg)
    299
    Exh. Duration Advertised (Deg)
    319
    Engine Make/Size
    Chevy Small Block (262-400)
    Lifter Type
    Hydraulic Roller Retrofit
    Usage
    Street/Strip
    Gaskets Included
    No
    Advertised Duration
    299 int./319 exh.
    Advertised Exhaust Duration
    319
    Advertised Intake Duration
    299
    Assembly Lubricant Included
    Yes
    Basic Operating RPM Range
    2,500-6,200
    Cam Style
    Hydraulic roller tappet
    Camshaft Gear Attachment
    3-bolt
    Computer-Controlled Compatible
    No
    Duration at 050 inch Lift
    243 int./257 exh.
    Exhaust Duration at 050 inch Lift
    257
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.519
    Grind Number
    299THR7
    Intake Duration at 050 inch Lift
    243
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.533
    Lifter Style
    Hydraulic roller
    Lifters Included
    Yes
    Locks Included
    No
    Pushrods Included
    No
    Quantity
    Sold as a kit
    Retainers Included
    No
    Rocker Arms Included
    No
    Timing Chain and Gears Included
    Yes
    Timing Chain Style
    Gears
    Valve Lift with Factory Rocker Arm Ratio
    0.533 int./0.519 exh.
    Valve Springs Included
    No
    Valve Springs Required
    Yes
    Valve Stem Seals Included
    No
    Lobe Separation (Deg)
    107
    Manufacturer's Part Number:
    GK08-602-8

    Thumpr Camshafts are available in three different grind profiles, each one of which will produce a rough, racy exhaust note and impressive amounts of horsepower and torque at a different rpm range. Their cutting-edge hydraulic roller design means that they will deliver a substantial power increase over an identical hydraulic flat tappet grind without sacrificing reliability or ease of maintenance. So look no further than the Thumpr line of camshafts - engineered to deliver that much sought-after ''thumping'' idle quality to everyone.

    Features:
  • Retro-fit hydraulic roller design will fit all factory flat tappet equipped Small Block Chevy and Ford Windsor
  • 3 grinds to fit all of your cruising and street performance needs
  • Long exhaust duration and other grind characteristics produce a powerful, hard-hitting exhaust note
  • Excellent horsepower gains and broad torque curve deliver real seat of the pants performance
  • Designed for use with the latest in valve train component advancements such as Beehive Valve Springs, Pro Magnum Roller Rockers and Magnum Pushrods

    Camshaft & Lifter Kits are indicated by a CL in their part number and include Camshaft, Lifters, Assembly Lube, Decals, and Instructions.

    Complete Kits are indicated by a K in their part number and include Camshaft, Lifters, Timing Chain & Gears, Valve Springs, Retainers, Locks, Assembly Lube, Decals, and Instructions.

  • Does COMP Cams GK08-602-8 fit your vehicle?

    Narrow Results

    1987-1995 GMC G35/G3500 VAN

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

    1987 GMC R2500 PICKUP

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

    1988-1993 GMC K3500 PICKUP

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

    1988-1992 CHEVROLET K1500 PICKUP

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

    1987-1989 GMC V2500 SUBURBAN

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

    1987-1989 CHEVROLET G20 VAN

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

    1987-1989 GMC R2500 PICKUP

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

    1994-1995 CHEVROLET C2500 PICKUP

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

    1987-1993 GMC G15/G1500 VAN

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

    1994-1995 GMC K3500 PICKUP

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

    1988-1993 GMC C2500 PICKUP

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

    1988-1993 GMC C2500 PICKUP

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

    1987-1989 CHEVROLET G20 VAN

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

    1992-1995 GMC K2500 SUBURBAN

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

    1987 CHEVROLET V10 SUBURBAN

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

    1995 GMC C2500 SUBURBAN

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

    1987-1990 CHEVROLET BLAZER

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

    1995 CHEVROLET C1500 SUBURBAN

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

    1987-1992 PONTIAC FIREBIRD

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

    1987-1993 CHEVROLET G10 VAN

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

    1987 CHEVROLET V10 PICKUP

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

    1988-1995 CHEVROLET K1500 PICKUP

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

    1995 GMC K1500 PICKUP

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

    1987-1988 CHEVROLET CAPRICE

    • CC: 5031
    • Liter: 5.0
    • SubModel: CLASSIC LS BROUGHAM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1987-1988 CHEVROLET CAPRICE

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

    1995 GMC YUKON

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

    1988-1995 CHEVROLET C2500 PICKUP

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

    1991-1993 BUICK COMMERCIAL CHASSIS

    • EngineType: ALL
    • SubModel: ALL

    1987 CHEVROLET G10 VAN

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

    1989-1990 CHEVROLET CAPRICE

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

    1994 GMC K1500

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

    1987-1989 CHEVROLET G20 VAN

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

    1988-1992 CHEVROLET C2500 PICKUP

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

    1994-1995 GMC YUKON

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

    1988-1995 CHEVROLET K2500 PICKUP

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

    1994-1995 GMC K3500 PICKUP

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

    1987-1995 GMC G35/G3500 VAN

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

    1994-1995 CHEVROLET K3500 PICKUP

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

    1993 GMC K1500

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

    1993 CHEVROLET CAPRICE

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

    1987-1996 CHEVROLET G30 VAN

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

    1987 GMC R2500 SUBURBAN

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

    1995 CHEVROLET C1500 SUBURBAN

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

    1994-1995 CHEVROLET C2500 PICKUP

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

    1991-1992 CADILLAC BROUGHAM

    • EngineType: ALL
    • SubModel: ALL

    1987-1989 GMC R3500 PICKUP

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

    1987 GMC R1500 PICKUP

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

    1995 CHEVROLET C2500 SUBURBAN

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

    1988-1993 GMC C1500 PICKUP

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

    1987 GMC CABALLERO

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

    1994 CHEVROLET BLAZER

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

    1987-1996 CHEVROLET G30 VAN

    • Liter: 5.7
    • SubModel: HI-CUBE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994 GMC K1500

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

    1987-1988 CHEVROLET MONTE CARLO

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

    1987-1989 GMC V1500 SUBURBAN

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

    1990-1995 CHEVROLET K1500 PICKUP

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

    1987 GMC R1500 SUBURBAN

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

    1987 GMC V2500 SUBURBAN

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

    1989-1991 CHEVROLET V2500 SUBURBAN

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

    1990-1995 CHEVROLET G10 VAN

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

    1989-1992 PONTIAC FIREBIRD

    • Liter: 5.7
    • SubModel: TRANS AM GTA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1988 CHEVROLET R30 PICKUP

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

    1989-1992 PONTIAC FIREBIRD

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

    1987-1988 CHEVROLET V30 PICKUP

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

    1987-1995 GMC G25/G2500 VAN

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

    1994-1995 CHEVROLET C1500 PICKUP

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

    1987-1995 GMC G15/G1500 VAN

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

    1994 CHEVROLET BLAZER

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

    1987 CHEVROLET R10 PICKUP

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

    1995 GMC C1500 PICKUP

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

    1987 CHEVROLET R10 PICKUP

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

    1987 GMC V2500 PICKUP

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

    1988-1995 CHEVROLET C2500 PICKUP

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

    1991-1993 BUICK ROADMASTER

    • EngineType: ALL
    • SubModel: ESTATE WAGON

    1994-1995 GMC C2500 PICKUP

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

    1990 CADILLAC BROUGHAM

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

    1992-1994 CHEVROLET K2500 SUBURBAN

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

    1987-1991 GMC V2500 SUBURBAN

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

    1988-1995 GMC C1500 PICKUP

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

    1987-1988 CHEVROLET V20 SUBURBAN

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

    1991 CHEVROLET K1500 PICKUP

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

    1987-1989 CHEVROLET G10 VAN

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

    1995 GMC K1500 PICKUP

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

    1988-1992 GMC K1500 PICKUP

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

    1993 GMC K1500

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

    1987 CHEVROLET EL CAMINO

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

    1995 CHEVROLET K2500 SUBURBAN

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

    1995 CHEVROLET K2500 SUBURBAN

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

    1988-1992 CHEVROLET K3500 PICKUP

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

    1988-1992 GMC K1500 PICKUP

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

    1987 GMC CABALLERO

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

    1995 GMC C1500 PICKUP

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

    1987 CHEVROLET R10 SUBURBAN

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

    1995 CHEVROLET K1500 SUBURBAN

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

    1989-1991 CHEVROLET R2500 SUBURBAN

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

    1988-1993 GMC C3500 PICKUP

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

    1988-1995 CHEVROLET K3500 PICKUP

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

    1989-1991 CHEVROLET V2500 SUBURBAN

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

    1987-1989 CHEVROLET G10 VAN

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

    1988-1993 GMC K2500 PICKUP

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