Big Mutha Thumpr Hydraulic Roller Camshaft Complete Kit Lift: .533"/.519"
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COMP CAMSPART NUMBER: 249-K08-602-8

Big Mutha Thumpr Hydraulic Roller Camshaft Complete Kit Lift: .533"/.519"

$1,51895
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Chevy 262-400ci Small Block 1987-98 -Factory Roller Block
  • Big Mutha Thumpr
    • Big Mutha Thumpr Hydraulic Roller Camshaft Complete Kit
    • Lift: .533"/.519"
    • Duration: 299°/319°
    • Lobe Separation Angle: 107°
    • RPM Range: 2500-6200

    • Complete Kit
    • 3 Grinds To Fit All Of Your Performance Needs
    • Long Exhaust Duration
    • Produces A Powerful Hard-Hitting Exhaust Note
    • Excellent Horsepower Gains And Broad Torque Curve
    • Delivers Real Seat Of The Pants Performance
    • Designed For Use w/Latest In ValveTrain Components
    • 1 Year Limited Warranty

      265, 283, 307, 302, 305, 327, 350, 383, 400, 427, L46, L48, L65, LM1, LT-1, L82, L81, LS9, L83, L98, L05, LG3, LG4, LT1, LT4, Camaro, Corvette, Chevelle, Stingray, Silverado, C10, Firebird, Chevrolet, Chevy, Small Block Chevy, Caprice, Malibu, Impala, Nova, 355, GEN1, Monte Carlo, S10


      Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.

    Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

      Peak Power & Reliability

      The Thumpr line of camshafts is a series of retro-fit hydraulic roller camshafts designed for use in 1955- 1998 262-400 cubic inch Small Block Chevrolet engines equipped with flat tappet camshafts. Thumpr Camshafts possess such an aggressive exhaust note due to the lobe profiles and grind characteristics chosen by the COMP Cams engineers. These camshafts produce a combination of early exhaust valve opening, long exhaust duration, and a generous amount of intake and exhaust overlap to maximize the rough-idling characteristics. Their cutting-edge hydraulic roller design 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 Small Block Chevy owners everywhere.

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      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.

      Unlock serious performance and aggressive sound with the Comp Cams Thumpr Hydraulic Roller Cams—the perfect choice for muscle car enthusiasts and performance builders looking to make a statement. These cams are specifically designed to deliver increased horsepower and torque while providing that signature "thumpy" idle that turns heads at every stoplight.

      Whether you're building a street machine or upgrading your engine for track days, the Thumpr cam gives your vehicle a noticeable boost in performance without compromising reliability. These cams feature a hydraulic roller design that offers superior durability, allowing for better valve control at higher RPMs, reducing friction, and increasing engine efficiency.

      For those seeking an even more aggressive profile, the Mutha Thumpr cam offers an even more intense sound and performance upgrade. With optimized lobe profiles, this cam produces a lopey idle and delivers peak performance at mid to high RPM ranges, ensuring your engine performs at its best when you need it most.

      Perfect for anyone looking to enhance the power, sound, and style of their ride, the Thumper cam is engineered for vehicles with modified cylinder heads, high-compression ratios, and other performance upgrades. Comp Cams delivers exceptional quality and precision, ensuring that these cams will stand the test of time.

      Shop JEGS today to take your engine's performance and sound to the next level with Comp Cams Thumpr Hydraulic Roller Cams—designed for the enthusiast who wants more power and attitude.

    Part TypeCamshaft Kit
    Product LineComp Cams Thumpr Hydraulic Roller Cams
    BrandCOMP CAMS
    Package Height5.0
    Package Width10.5
    Package Length26.0
    Weight27.0 PG
    Part CategoryPerformance Parts
    Exh. Duration @ .050 In. (Deg)257
    Cam StyleHydraulic roller tappet
    Grind Number299THR7
    Exh. Duration Advertised (Deg)319
    Locks IncludedYes
    Engine Make/SizeChevy Small Block (262-400)
    Retainers IncludedYes
    Intake Valve Lift With Factory Rocker Arm Ratio (I0.533
    Int. Duration @ .050 In. (Deg)243
    Assembly Lubricant IncludedNo
    Basic Operating Rpm Range2,500-6,200
    Pushrods IncludedNo
    Gaskets IncludedNo
    Rocker Arms IncludedNo
    Intake Valve Lift0.533 in (13.538 mm)
    Computer-Controlled CompatibleNo
    Int. Duration Advertised (Deg)299
    Lobe Separation (Deg)107
    Rpm Range1900-5600
    Lifter StyleHydraulic roller
    Advertised Duration299 int./319 exh.
    Exhaust Valve Lift With Factory Rocker Arm Ratio (0.519
    Valve Springs IncludedYes
    UsageStreet/Strip
    Valve Lift With Factory Rocker Arm Ratio0.533 int./0.519 exh.
    QuantitySold as a kit
    Valve Stem Seals IncludedYes
    Exhaust Valve Lift0.519 in (13.183 mm)
    Advertised Intake Duration299
    Outside Diameter Of Outer Spring1.31 in (33.3 mm)
    Intake Duration At 050 Inch Lift243
    Exhaust Duration At 050 Inch Lift257
    Timing Chain StyleDouble roller
    Timing Chain And Gears IncludedYes
    Advertised Exhaust Duration319
    Lifter TypeHydraulic Roller Retrofit
    Duration At 050 Inch Lift243 int./257 exh.
    Valve Springs RequiredNo
    Lifters IncludedYes
    Vendor Part NumberK08-602-8
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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