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COMP Cams CL20-601-9 Mutha' Thumpr Hydraulic Roller Camshaft and Lifter Kit for Chrysler 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

CL20-601-9
4 reviews
Sale Price

$1,250.95

Estimated ship date Tuesday, November 24

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Product Details

The COMP Cams CL20-601-9 Mutha' Thumpr hydraulic roller camshaft and lifter kit delivers that aggressive, musclecar sound with impressive performance gains for Chrysler small block 273-360 cubic inch engines. Part of COMP Cams' legendary Thumpr series, this complete CL-Kit is designed for high-performance street and strip applications where that distinctive lopey idle and aggressive exhaust note are desired.

Key Specifications:

  • Intake valve lift: 0.522 inches at 1.5:1 rocker ratio
  • Exhaust valve lift: 0.509 inches at 1.5:1 rocker ratio
  • Intake duration @ 0.050": 235 degrees
  • Exhaust duration @ 0.050": 249 degrees
  • Advertised intake duration: 291 degrees
  • Advertised exhaust duration: 311 degrees
  • Lobe separation angle: 107 degrees
  • Operating RPM range: 2,200-5,900 RPM
  • Camshaft material: Billet steel
  • Lifter type: Hydraulic roller

What's Included:

  • Hydraulic roller camshaft (part number 20-601-9)
  • Hydraulic roller lifter set (part number 8920-16)
  • Assembly lube for proper break-in
  • Installation instructions and COMP Cams decals

Application Notes: This retro-fit hydraulic roller kit is designed for 1964-2002 Chrysler small block 273-360 LA engines originally equipped with flat tappet camshafts. The unique lobe profile combines early exhaust valve opening, long exhaust duration, and generous intake/exhaust overlap to create that signature rough idle and aggressive exhaust note without sacrificing streetability or reliability. Recommended supporting modifications include a minimum 9:1 compression ratio, 2,500+ RPM stall converter, performance intake manifold, rear gear ratio upgrade, and headers for optimal performance. Note that valve springs are required but not included with this kit. Not compatible with 1992-2002 Magnum pedestal or stud-mount rocker arms. This cam is designed for carbureted applications and is not compatible with most EFI systems.

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

319

Advertised Intake Duration

299

Basic Operating RPM Range

2,200-5,900

Engine Family

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

Intake Valve Lift

0.522

Kit Type

Cl-Kit - Cam and Lifter Kit

Exhaust Valve Lift

0.509

Exhaust Duration at .050 inch Lift

249

K-Kit Upgrade

K20-601-9

AMAZON ASIN

B001GEPFAY

Usage

Street/Performance

Assembly Lubricant Included

No

Camshaft Gear Attachment

1-Bolt

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.

Gaskets Included

No

Locks Included

No

Lifter Type

Hydraulic Roller

Intake Duration at .050 Inch Lift

235

Cam Type

Hydraulic Roller

Lifters Included

Yes

Retainers Included

No

Timing Chain and Gears Included

No

Camshaft Material

Billet Steel

LOBE SEPARATION

107

Valve Stem Seals Included

No

Camshaft Series

Thumpr

This was my first purchase from Autoplicity, I bought a HyperTech tuner for my truck, they had absolutely the lowest price of anywhere I looked by far. Only thing I could fault them on is that it took 3 days for the product to ship, a little bit long I feel for something that was in stock, but Ill overlook it since it was such a great price.

Autoplicity was quick, and fast! the shipping was standard but arrived in five days! I would definetly recommend them!

Very Good

I ordered a water pump from them and that Amazon was advertising as a Chrome pump. When I discovered it was not chrome, I asked to cancel the order which was prior to shipping notification. I was told by customer service it had already been sent and I would have to wait until the item was sent for a return to be processed. The return was sent back and all money was credited to my account as promised.

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