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COMP Cams 23-600-9 Thumpr Hydraulic Roller Camshaft Chrysler - 227/241 383-440

(Chrysler 300 1959-71, Town & Country 1959-77, Newport 1959-78, New Yorker 1959-78, Imperial 1959-75, Cordoba 1975-78, Saratoga 1959-60 + 38 more models)

Part of: COMP Cams Thumpr Hydraulic Roller Camshaft Ford

Other options in this family: COMP Cams 35-600-8 COMP Cams 20-600-9 COMP Cams 34-600-9 COMP Cams 31-600-8 COMP Cams 32-600-8

Manufacturer

Picture for manufacturer COMP Cams

Part Number

23-600-9
10 reviews
Sale Price

$622.95

Estimated ship date Saturday, November 21

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Product Details

The COMP Cams Thumpr camshaft delivers aggressive sound and performance for classic Chrysler big-block engines. Designed for 383-440 cubic inch B/RB series engines, this hydraulic roller cam features 227/241 degrees of advertised duration for a distinctive idle and strong mid-range torque.

Key Specifications:

  • Advertised Duration: 227° Intake / 241° Exhaust
  • Duration @ .050": 218° Intake / 230° Exhaust
  • Valve Lift (with 1.5 ratio): .477" Intake / .480" Exhaust
  • Lobe Separation Angle: 112°
  • Hydraulic roller design for reduced friction and wear
  • Compatible with factory roller lifters

Performance Characteristics:

  • Rough, aggressive idle with distinctive "Thumpr" sound
  • Strong low-end to mid-range torque delivery
  • Optimized for street performance and hot rod applications
  • Recommended RPM range: 1,600-5,800 RPM
  • Works with stock or aftermarket cylinder heads

This camshaft is engineered specifically for Chrysler 383-440 B/RB big-block engines equipped with factory hydraulic roller lifter provisions. The Thumpr series is designed for enthusiasts who want aggressive sound without sacrificing street manners. Requires matching valve springs, lifters, and pushrods (sold separately). Professional installation and proper valve train setup recommended for optimal performance.

Products specifications

Fits

Chrysler 300 1959-71, Town & Country 1959-77, Newport 1959-78, New Yorker 1959-78, Imperial 1959-75, Cordoba 1975-78, Saratoga 1959-60, Ford 300 1959-71, Windsor 1959-61; Dodge Charger 1966-78, Challenger 1970-71, Dart 1960-69 + 33 more models

Advertised Exhaust Duration

303

Basic Operating RPM Range

1,900-5,600

Grind Number

283THR7

Engine Family

Chrysler 383-440 c.i. 8 Cylinder (1959-1980)

Exhaust Valve Lift

0.498

Exhaust Duration at .050 inch Lift

241

AMAZON ASIN

B0046ZJ3KI

Usage

Street/Performance

Assembly Lubricant Included

No

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.

Camshaft Gear Attachment

3-Bolt

Lifter Type

Hydraulic Roller

Intake Duration at .050 Inch Lift

227

Cam Type

Hydraulic Roller

Camshaft Material

Billet Steel

Intake Valve Lift

0.513

LOBE SEPARATION

107

Advertised Intake Duration

283

Camshaft Series

Thumpr

So far so good

Good prices and fast shipping!!

Hassle-free shopping

Smooth. Would do business again

Quick and easy to shop.

I haven't used the part yet.

Super seller

I paid for 2nd day shipping and 5 days later they were shipped out. So, I should receive my rotors in a full week from when I paid for 2 day shipping. I called customer service and they discounted the shipping rate to ground service. At least they were polite and helpful in the phone.

great experience, good price, item arrived within 4 days of purchase, would do business with again in future !

Great buy!

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