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COMP Cams 20-601-9 Mutha' Thumpr Hydraulic Roller Camshaft Chrysler - 235/249 273-360

(Jeep Grand Cherokee 1993-98, Grand Wagoneer 1993; Dodge Durango 1998-2002, Ram 2500 1994-2002, Ram 1500 1994-2002, Dakota 1989-2002 + 134 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

20-601-9
7 reviews
Sale Price

$558.95

3 left at this price

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Usually delivered within 2 days

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Product Details

The COMP Cams Mutha' Thumpr hydraulic roller camshaft is designed to deliver an aggressive idle and excellent low-end torque for street performance Chrysler small block engines. This camshaft features 235° intake duration and 249° exhaust duration at 0.050" lift, creating the signature Thumpr sound while maintaining street drivability.

Key Specifications:

  • Intake Duration: 235° @ 0.050"
  • Exhaust Duration: 249° @ 0.050"
  • Hydraulic roller design for reduced friction and improved valve control
  • Fits Chrysler small block 273, 318, 340, and 360 cubic inch engines
  • Designed for street performance with aggressive idle characteristics
  • Requires hydraulic roller lifters and compatible valve springs (sold separately)

Performance Benefits:

  • Aggressive, loping idle that announces serious performance
  • Strong low-end to midrange torque for excellent street performance
  • Hydraulic roller design eliminates break-in procedures required with flat tappet cams
  • Reduced valvetrain friction compared to flat tappet designs

The Mutha' Thumpr series from COMP Cams is engineered for enthusiasts who want maximum attitude with their performance upgrade. This camshaft works best with aftermarket converters (2,400-2,800 RPM stall recommended), headers, and performance intake manifolds. Compatible with both stock and modified cylinder heads.

Products specifications

Fits

Jeep Grand Cherokee 1993-98, Grand Wagoneer 1993; Dodge Durango 1998-2002, Ram 2500 1994-2002, Ram 1500 1994-2002, Dakota 1989-2002, Charger 1966-78, Challenger 1970-74, Ram 3500 1994-2002, Dart 1964-77, 1980-82 + 130 more models

Advertised Exhaust Duration

311

Advertised Intake Duration

291

Basic Operating RPM Range

2,200-5,900

Grind Number

291THR7

Engine Family

Chrysler 273-360 c.i. 8 Cylinder (1964-2002)

Intake Valve Lift

0.522

Exhaust Valve Lift

0.509

Exhaust Duration at .050 inch Lift

249

Cam and Lifter Kit Upgrade

CL20-601-9

K-Kit Upgrade

K20-601-9

AMAZON ASIN

B001GBMGJU

Usage

Street/Performance

Assembly Lubricant Included

No

Camshaft Gear Attachment

1-Bolt

Lifters Included

No

Valve Springs Required

Yes

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for On-Road Vehicles?

No

C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?

Yes, but must be a race/competition only vehicle.

C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

Lifter Type

Hydraulic Roller

Intake Duration at .050 Inch Lift

235

Cam Type

Hydraulic Roller

Camshaft Material

Billet Steel

LOBE SEPARATION

107

Camshaft Series

Thumpr

Autoplicity had the lowest price by far and shipping was very fast (ordered Wednesday evening, arrived Saturday morning). I will definitely order from Autoplicity again!

Fast shipping, good prices.

Very pleasant order over the phone. Gentleman was smart, cheerful and helpful.

Just what you want from a merchant but don't expect; fast, courteous service and attention to the details of your order. I'm a happy consumer. Thank you, Autoplicity. I'll be back.

Autoplicity cares about there customers. I ordered a flash programmer and got to the last page and never got a confirmation of the order. I used the website chat and talked to somebody about it right away. So I ordered again and got a conformation. But both went though. Autoplicity called me next day a.m. to see if I made a mistake. Thanks for letting me know and correcting to one order. Saved me from shipping back a product I dind't need.

Good products with low prices. Easy website and pament options.

Exact product as promised with the best price on the internet. Product shipped fast and had a tracking number to keep me up to date on my order. I would order from again without hesitation and will tell friends.

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