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COMP Cams 21-306-4 Magnum Hydraulic Flat Tappet Camshaft Chrysler - 224/224 383-440

(Chrysler 300 1959-71, Town & Country 1959-77, Newport 1959-78, New Yorker 1959-78, Imperial 1959-75, Cordoba 1975-78, Saratoga 1959-60 + 100 more models)

Part of: COMP Cams Magnum Hydraulic Flat Tappet Camshaft Ford

Other options in this family: COMP Cams 12-212-2 COMP Cams 35-226-3 COMP Cams 20-232-4 COMP Cams 32-225-4 COMP Cams 12-211-2

Manufacturer

Picture for manufacturer COMP Cams

Part Number

21-306-4
4 reviews
Sale Price

$309.95

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The COMP Cams Magnum 21-306-4 is a high-performance hydraulic flat tappet camshaft designed specifically for Chrysler big block 383-440 cubic inch engines. This camshaft delivers a balanced combination of mid-range torque and top-end horsepower, making it an excellent choice for street performance and muscle car restoration applications.

Camshaft Specifications:

  • Advertised Duration: 268°/268° intake/exhaust
  • Duration at .050": 224°/224° intake/exhaust
  • Valve Lift: .477"/.480" intake/exhaust (with 1.5:1 rocker ratio)
  • Lobe Separation Angle: 110°
  • Hydraulic flat tappet design for reliable street operation
  • Recommended RPM range: 1,500-5,500 RPM
  • Requires valve spring upgrade for proper operation

This camshaft profile provides excellent throttle response and strong acceleration while maintaining good vacuum for power brakes and smooth idle characteristics. The symmetric intake/exhaust duration produces a traditional muscle car sound with a moderate lope. Compatible with stock or aftermarket cylinder heads, this cam works well with compression ratios from 9.0:1 to 10.5:1 and requires a matching hydraulic flat tappet lifter set, timing chain, and upgraded valve springs for proper installation.

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 1970-74, Dart 1960-69 + 95 more models

Basic Operating RPM Range

1,800-5,500

Grind Number

270H

Cam Type

Hydraulic Flat Tappet

Engine Family

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

Intake Valve Lift

0.47

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL21-306-4

K-Kit Upgrade

K21-306-4

Camshaft Series

Magnum

SK-Kit Upgrade

SK21-306-4

AMAZON ASIN

B000CIS796

Assembly Lubricant Included

Yes

Camshaft Gear Attachment

1-Bolt

Lifters Included

No

LOBE SEPARATION

110

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.

Advertised Intake Duration

270

Advertised Exhaust Duration

270

Usage

Street/Strip

Exhaust Valve Lift

0.47

Exhaust Duration at .050 inch Lift

224

Intake Duration at .050 Inch Lift

224

Everything arrived well packaged and in good order... It was shipped promptly, but hey, no accounting for the snow storm in the NW... I think UPS calls it an "act of God"... Thanks

Quick shipping and they had the fuel jugs I needed for the best prices thanks!<br><br>UPDATE: they were so good I made another order with them within a week.

Ordered Monday, delivered Thursday - just as promised. Best price among all reputable on-line parts dealers. Saved at least a third off the most popular dealers.

Great selection and fast shipping. Not to meantion the lowest prices anywhere on the net.

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