Jegs Free Catalog
1-800-345-4545
FREE SHIPPING!
Orders Over $95
Same Day Shipping Before 11 PM ET
0
My Cart
0
Free Shipping on Orders Over $95
Shop By Vehicle
Shop By
Category
Close Menu
Top Categories
All Categories

Free Catalog
E-Mail Signup
My Account
Track Order
Gift Certificates
Rebates
Help

COMP Cams CL12-600-4

Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit Lift .479"/.465" Duration 279/297 RPM Range 2000 to 5800

COMP Cams CL12-600-4

249-CL12-600-4

jegs shipping
FREE Shipping
Ships
COMP Cams CL12-600-4 Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit Lift .479"/.465" Duration 279/297 RPM Range 2000 to 5800 $208.99
Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit
Lift .479"/.465"
Duration 279/297
RPM Range 2000 to 5800

COMP Cams CL12-600-4 Details

Chevy 262-400ci Small Block 1958-98

  • Best with 2000+ Converter & Gears. Choppy/Thumping Idle
  • Camshaft And Lifter 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

  • Specifications:

    Exhaust Valve Lift (in.)
    0.465
    Intake Valve Lift (in.)
    0.479
    RPM Range
    2000-5800
    Int. Duration @ .050 in. (Deg)
    227
    Exh. Duration @ .050 in. (Deg)
    241
    Int. Duration Advertised (Deg)
    279
    Exh. Duration Advertised (Deg)
    297
    Engine Make/Size
    Chevy Small Block (262-400)
    Lifter Type
    Hydraulic Flat Tappet
    Usage
    Street/Performance
    Gaskets Included
    No
    Advertised Duration
    279 int./297 exh.
    Advertised Exhaust Duration
    297
    Advertised Intake Duration
    279
    Assembly Lubricant Included
    Yes
    Basic Operating RPM Range
    2,000-5,800
    Cam Style
    Hydraulic flat tappet
    Camshaft Gear Attachment
    3-bolt
    Computer-Controlled Compatible
    No
    Duration at 050 inch Lift
    227 int./241 exh.
    Exhaust Duration at 050 inch Lift
    241
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.465
    Grind Number
    279TH7
    Intake Duration at 050 inch Lift
    227
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.479
    Lifter Style
    Hydraulic flat tappet
    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
    No
    Valve Lift with Factory Rocker Arm Ratio
    0.479 int./0.465 exh.
    Valve Springs Included
    No
    Valve Springs Required
    Yes
    Valve Stem Seals Included
    No
    Lobe Separation (Deg)
    107
    Manufacturer's Part Number:
    CL12-600-4

    Thumpr Camshafts are the hottest cams to hit the streets in more than a decade. That's because they give you the big cam sound you're looking for, without the drawbacks. Applying a camshaft design originally created for sports car endurance racing, they incorporate early exhaust valve opening, long exhaust duration, and a generous amount of intake and exhaust overlap. Best of all, Thumprs will not negatively impact power output or streetability.

    Features:
  • Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods
  • Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note
  • Best with aftermarket converters and more rear gear


    Thumpr Sound ClipClick to Listen

    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 CL12-600-4 fit your vehicle?

    Narrow Results
    Year: 1974
    Make: CHEVROLET
    Model: C20 PICKUP

    1974 CHEVROLET C20 PICKUP

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

    1974 CHEVROLET C20 PICKUP

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