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COMP Cams Mutha" Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit Lift .489"/.476" Duration 287/305 RPM Range 2200 to 6100

249-CL12-601-4


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COMP Cams CL12-601-4
$229.95
Mutha' Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit
Lift .489"/.476"
Duration 287/305
RPM Range 2200 to 6100
Free Shipping - Estimated to ship directly from the manufacturer on 08/02/21

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Does COMP Cams CL12-601-4 fit your vehicle?

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1980 CHEVROLET C10 SUBURBAN

  • Liter: 5.7
  • SubModel: CUSTOM DELUXE
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 350
  • Engine Type: V8 ( 5.7L / 350 )
  • Engine Vin: M

1973 CHEVROLET C10 SUBURBAN

  • Liter: 5
  • SubModel: BASE
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 307
  • Engine Type: V8 ( 5L / 307 )
  • Engine Vin: X

1963 CHEVROLET K20 PICKUP

  • Liter: 4.6
  • SubModel: BASE
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 283
  • Engine Type: V8 ( 4.6L / 283 )
  • Engine Vin: -

1972 CHEVROLET TOWNSMAN

  • Liter: 6.6
  • SubModel: BASE
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 402
  • Engine Type: V8 ( 6.6L / 402 )
  • Engine Vin: U

1982 GMC C3500

  • Liter: 5.7
  • SubModel: HIGH SIERRA
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 350
  • Engine Type: V8 ( 5.7L / 350 )
  • Engine Vin: M

1972 CHEVROLET G20 VAN

  • Liter: 5.7
  • SubModel: SPORTVAN
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 350
  • Engine Type: V8 ( 5.7L / 350 )
  • Engine Vin: -

1962 CHEVROLET K20 PICKUP

  • Liter: 4.6
  • SubModel: BASE
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 283
  • Engine Type: V8 ( 4.6L / 283 )
  • Engine Vin: -

1975 CHEVROLET K20 SUBURBAN

  • Liter: 5.7
  • SubModel: SCOTTSDALE
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 350
  • Engine Type: V8 ( 5.7L / 350 )
  • Engine Vin: V

1972 CHEVROLET K30 PICKUP

  • Liter: 5.7
  • SubModel: BASE
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 350
  • Engine Type: V8 ( 5.7L / 350 )
  • Engine Vin: E

1974 CHEVROLET NOVA

  • Liter: 5.7
  • SubModel: BASE
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 350
  • Engine Type: V8 ( 5.7L / 350 )
  • Engine Vin: T

1980 CHEVROLET C20 SUBURBAN

  • Liter: 6.6
  • SubModel: SILVERADO
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 400
  • Engine Type: V8 ( 6.6L / 400 )
  • Engine Vin: X

1973 CHEVROLET CHEVELLE

  • Liter: 5.7
  • SubModel: DELUXE
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 350
  • Engine Type: V8 ( 5.7L / 350 )
  • Engine Vin: K
CL12-601-4 - Comp Cams Thumpr Hydraulic Flat Tappet Cams is rated 3.7 out of 5 by 3.
Rated 5 out of 5 by from perfect i have owned all 3 cams in this series for sbc. The muthathumpr is my favorite. in a .40 over 350 202 heads and flat top pistons, and sounds great with open headers. so happy.
Date published: 2014-11-22
Rated 1 out of 5 by from Cam and lifters failed right from first fire! Coated everything with the lube that came with it had penngrade break in oil in it also chewed 2 lifters right off the bat not very happy
Date published: 2019-10-03
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Is this cam compatible for roller rocker?

Asked by: Andrew355
Yes, you can use this with a roller rocker arm kit.
Answered by: Rusty B
Date published: 2018-04-04

Will I need a new torque converter for this cam

Asked by: Cj parker
That cam requires a 2400+ rpm stall speed converter
Answered by: SteveM
Date published: 2020-11-30

will i need differnt push rods for this cam

Asked by: Boggie58
This cam uses stock length pushrods.
Answered by: Jon Jegs Tech
Date published: 2019-05-21
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Some parts are not legal for use in California or other states with similar laws / regulations

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WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

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WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

Electrical Cords

WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.