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COMP Cams 21-671-4 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 12-671-4 COMP Cams 12-670-4 COMP Cams 21-670-4 COMP Cams 20-672-4

Manufacturer

Picture for manufacturer COMP Cams

Part Number

21-671-4
6 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 Nostalgia Plus 21-671-4 hydraulic flat tappet camshaft is engineered specifically for Chrysler 383-440 big block engines, delivering authentic muscle car performance with modern reliability. This camshaft features a 239°/246° advertised duration profile that produces a strong mid-range power band with excellent throttle response and a classic lopey idle that enthusiasts love.

Key Specifications:

  • Advertised Duration: 239° Intake / 246° Exhaust
  • Duration @ .050": 279° Intake / 286° Exhaust
  • Valve Lift (with 1.5 rocker ratio): .480" Intake / .480" Exhaust
  • Lobe Separation Angle: 110°
  • Hydraulic flat tappet design for quiet, reliable operation
  • Compatible with stock valve springs and components

Performance Features:

  • Ideal RPM range: 1,500-5,500 RPM
  • Strong low-end and mid-range torque delivery
  • Smooth idle quality with classic muscle car sound
  • Works with stock or mildly modified cylinder heads
  • Suitable for street performance and light competition use
  • Designed for automatic or manual transmissions

This Nostalgia Plus camshaft is perfect for street-driven Mopar B-engines seeking improved performance while maintaining streetability and pump gas compatibility. The hydraulic flat tappet design ensures durability and low maintenance, while the carefully optimized lobe profile delivers noticeable power gains throughout the operating range. Compatible with stock valve train components, making it an excellent upgrade for resto-mod builds and classic muscle car restorations.

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

Advertised Exhaust Duration

291

Advertised Intake Duration

284

Grind Number

PP284H

Cam Type

Hydraulic Flat Tappet

Engine Family

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

Exhaust Valve Lift

0.484

Basic Operating RPM Range

2,300-6300

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL21-671-4

K-Kit Upgrade

K21-671-4

Camshaft Series

Nostalgia Plus

AMAZON ASIN

B000P5B93W

Usage

Street/Performance

Assembly Lubricant Included

Yes

Camshaft Gear Attachment

1-Bolt

Lifters Included

No

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.

Exhaust Duration at .050 inch Lift

246

Intake Duration at .050 Inch Lift

239

Intake Valve Lift

0.484

LOBE SEPARATION

108

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Cheaper than going through alta

I had a smog guy call me out that my filter was ok, my truck passed but since my pipe wasn't name brand we wouldn't pass me. It's a 2008 Nissan Titan. Needless to say I wasn't to happy about it but this place had what I needed for about $50 less than anywhere else and it shipped within 2 days. So far, so good, thanks Autoplicity

Good product, fast shipping, ease of shopping.

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