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COMP Cams CL20-600-4 Thumpr Hydraulic Flat Cam And Lifter Kit For Chrysler - 227/241 273-360

(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

Part Number

CL20-600-4
Sale Price

$397.95

In Stock (6)

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Usually delivered within 2 days

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Product Details

The COMP Cams Thumpr CL20-600-4 is a complete camshaft and lifter kit engineered for Chrysler small block V8 engines (273-360 cubic inch displacement). This aggressive hydraulic flat tappet camshaft delivers the signature Thumpr sound with a lopey idle and strong mid-range performance, making it ideal for street/strip applications and muscle car restorations.

Camshaft Specifications:

  • Intake Duration: 227 degrees at .050" lift
  • Exhaust Duration: 241 degrees at .050" lift
  • Hydraulic flat tappet design for reliable street performance
  • Aggressive lobe profile produces distinctive choppy idle
  • Optimized for improved throttle response and mid-range torque

Complete Kit Includes:

  • Thumpr camshaft machined to OE specifications
  • Matched hydraulic flat tappet lifters
  • Assembly lube for proper break-in
  • Installation instructions
  • COMP Cams decals

This kit is specifically designed for Chrysler 273, 318, 340, and 360 cubic inch LA-series small block engines. The Thumpr series is known for delivering maximum performance sound while maintaining street drivability with hydraulic reliability. Recommended for engines with upgraded valve springs, intake, headers, and a higher-than-stock stall converter for optimal performance.

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

297

Advertised Intake Duration

279

Basic Operating RPM Range

2,000-5,800

Cam Type

Hydraulic Flat Tappet

Engine Family

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

Kit Type

Cl-Kit - Cam and Lifter Kit

Exhaust Valve Lift

0.473

Intake Valve Lift

0.486

Exhaust Duration at .050 inch Lift

241

Camshaft Material

Cast Iron

K-Kit Upgrade

K20-600-4

AMAZON ASIN

B002EDZE3Y

Usage

Street/Performance

Assembly Lubricant Included

Yes

Camshaft Gear Attachment

1-Bolt

Valve Springs Required

Yes

Lifter Type

Hydraulic Flat Tappet

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.

Gaskets Included

No

Locks Included

No

Intake Duration at .050 Inch Lift

227

Lifters Included

Yes

Retainers Included

No

Timing Chain and Gears Included

No

LOBE SEPARATION

107

Valve Stem Seals Included

No

Camshaft Series

Thumpr

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