COMP Cams CL11-600-4 Thumpr 227/241 Hydraulic Flat Cam and Lifter Kit for Chevrolet Big Block 396-454
$386.30
- High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.
- 1,800-5,600 RPM Operating Range
- 227/241 Duration at .050″. 107 Degree Lobe Separation Angle. 0.498″/0.483″ Valve Lift
- CL Kits include a camshaft, a set of lifters, instructions and assembly lubricant.
- 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.
- Perfect choice for muscle cars and street rods – Three unique cam designs: Thumpr, Mutha’ Thumpr and Big Mutha’ Thumpr deliver excellent horsepower gains and broad torque curve.
- Fits Chevrolet 396-454 Mark IV Big Block
- Made in USA
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Description
High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.
From the manufacturer
Be Loud. Get Noticed.
If you’re a true performance enthusiast, you just can’t help be a little envious when you hear a Thumpr cam by COMP Cams. Nothing turns heads at a car show or a cruise-in than the sound of a hard hitting, high performance idle.
The COMP Cams engineering team called upon 30+ years of design experience to develop the Thumpr series of camshafts. The result of this effort is a series of performance camshafts that deliver the ultimate in modern performance and an incredible exhaust note.
Great Sound. Great Performance.
The Sound
COMP Thumpr camshafts use an early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
Performance
COMP developed the Thumpr, Mutha’ Thumpr and Big Mutha’ Thumpr cam grinds to not only make a great idle sound but also to produce a significant gain in both horsepower and torque.
Unique Grinds for Unique Rides
COMP has three different grinds for different performance applications from lower compression builds to higher compression engines in cars with looser torque converters and lower gear ratios.
COMP offers the Thumpr, Mutha’ Thumpr and Big Mutha’ Thumpr to handle applications from pump gas street cars to high compression applications. All offer a thumping idle with great performance.
Big Sound. Big Power.
- 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.
- Available with lifters in “CL” Kits, with lifters and a gear drive in “GK” kits or in an all-inclusive complete kit as a “K” kit.
COMP Cams offers four levels of complete component-matched kits that deliver unbeatable performance
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Thumpr CamOur Thumpr cams are available individually in either a Thumpr, Mutha’ Thumpr or Big Mutha’ Thumpr grind. Designed to accommodate a wide range of applications. | Thumpr Cam and Lifter KitNew flat tappet cams require new lifters. Our Thumpr camshaft line is available in ‘CL’ kit configuration which include a camshaft, a set of lifters, instructions and installation lubricant. Add CL to the beginning of the desired part number. | Thumpr Gear Drive KitFor the ultimate in classic hot rod sound, we offer our Thumpr cams in a kit that include a gear drive. While the Thumpr provides a choppy idle, the gear drive gives your engine a whining blower sound for the ultimate in timing accuracy, durability and hot rod sound. Add GK to the beginning of the desired part number. | Thumpr K-KitThumpr cam, a set of High Energy lifters, Magnum timing set, valve springs, chromemoly retainers, valve locks, seals along with instructions and installation lubricant. Add K to the beginning of the desired part number. |
Important information
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Additional information
| Brand | Comp Cams |
|---|---|
| Model | CL11-600-4 |
| Item Weight | 14.25 pounds |
| Product Dimensions | 25.4 x 5.5 x 3.1 inches |
| Item model number | CL11-600-4 |
| Manufacturer Part Number | CL11-600-4 |
| OEM Part Number | N |
| Date First Available | June 23, 2009 |
| Manufacturer | COMP Cams |
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