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COMP Cams 21-670-4 Nostalgia Plus Hydraulic Flat Tappet Camshaft Chrysler - for 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 Nostalgia Plus Hydraulic Flat Tappet Camshaft SBC

Other options in this family: COMP Cams 21-672-4 COMP Cams 21-671-4 COMP Cams 12-671-4 COMP Cams 12-670-4 COMP Cams 20-672-4

Manufacturer

Picture for manufacturer COMP Cams

Part Number

21-670-4
6 reviews
Sale Price

$309.95

In Stock (8)

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Product Details

The COMP Cams Nostalgia Plus 21-670-4 hydraulic flat tappet camshaft is specifically designed for Chrysler big block 383-440 cubic inch engines, delivering a classic muscle car sound with modern performance reliability. This camshaft features a 233/240 duration split that provides excellent low-end torque and strong mid-range power, making it ideal for street performance applications and nostalgic builds.

Camshaft Specifications:

  • Advertised Duration: 273°/280° intake/exhaust
  • Duration @ .050": 233°/240° intake/exhaust
  • Valve Lift: .462"/.470" intake/exhaust (with 1.5 rocker ratio)
  • Lobe Separation Angle: 110°
  • Hydraulic flat tappet design for quiet operation and easy maintenance
  • Compatible with stock valve springs and factory components

Performance Characteristics:

  • RPM Range: Idle-5,500 RPM
  • Excellent vacuum for power brakes and accessories
  • Smooth idle quality with mild lope
  • Optimized for street-driven vehicles with automatic or manual transmissions
  • Works well with stock or mildly modified cylinder heads

This camshaft is part of COMP Cams' Nostalgia Plus series, engineered to recreate the classic hot rod sound and feel while incorporating modern metallurgy and manufacturing precision. The conservative duration and lift specs ensure reliability with stock valve train components while still delivering noticeable performance gains over factory camshafts. Perfect for Mopar B and RB engine rebuilds where driveability and streetability are priorities.

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

Grind Number

PP280H

Cam Type

Hydraulic Flat Tappet

Engine Family

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

Exhaust Valve Lift

0.474

Intake Valve Lift

0.474

Intake Duration at .050 Inch Lift

233

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL21-670-4

K-Kit Upgrade

K21-670-4

Camshaft Series

Nostalgia Plus

AMAZON ASIN

B000P595S8

Usage

Street/Performance

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.

Basic Operating RPM Range

2,000-6,000

Exhaust Duration at .050 inch Lift

240

Advertised Exhaust Duration

287

Advertised Intake Duration

280

Thanks for quick, easy, and inexpensive. Now we'll see about quality.

Great site, great price got it as expected. Waiting for Xmas to open it. Thank u autoplicity.

Outstanding shopping experience as a first time user. Web-site was very user friendly, including the check-out. Fast and easy and shipping was super reasonable and even included a 20% discount. Thanks.

Good Price and fast processing order.

Best prices I found online.. processed same day and recieved same week..packaged great and works great.

Good so far with a lot details about parts. very good prices

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