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COMP Cams 11-671-4 Nostalgia Plus Hydraulic Flat Tappet Camshaft Chevy Big Block - for 396-454

(Honda Civic 2016-21; Chevrolet Camaro 1967-72, Corvette 1966-74, Impala 1965-76, Malibu 1966-67, 1973-75, C1500 1990-93, Chevelle 1965-73 + 107 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

11-671-4
5 reviews
Sale Price

$309.95

3 left at this price

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Product Details

The COMP Cams 11-671-4 Nostalgia Plus camshaft delivers authentic vintage muscle car performance for Chevrolet big block 396-454 engines. This solid flat tappet camshaft is engineered to replicate the aggressive sound and power characteristics of classic 1960s and early 1970s high-performance engines, making it ideal for nostalgic street performance builds and restoration projects.

Camshaft Specifications:

  • Advertised Duration: 282°/290° intake/exhaust
  • Duration at .050": 239°/246° intake/exhaust
  • Valve Lift (with 1.7 rocker ratio): .510"/.530" intake/exhaust
  • Lobe Separation Angle: 110°
  • Recommended RPM Range: 2,000-6,000 RPM
  • Recommended Valve Spring: COMP Cams #981 or equivalent (120 lbs seat pressure, 310 lbs open)

Performance Characteristics:

  • Produces strong mid-range torque with excellent top-end horsepower
  • Aggressive lope idle that captures classic muscle car sound
  • Works well with stock or mildly modified cylinder heads
  • Recommended compression ratio: 9.5:1 to 10.5:1
  • Designed for manual transmission applications; requires higher stall converter (2,400-2,800 RPM) for automatics

This camshaft requires compatible solid/mechanical lifters, pushrods, timing set, and break-in lubricant (sold separately). Professional installation and proper break-in procedure are essential for optimal performance and longevity. The Nostalgia Plus series provides period-correct performance for street rods, muscle car restorations, and weekend cruisers where authentic vintage character is desired.

Products specifications

Fits

Honda Civic 2016-21; Chevrolet Camaro 1967-72, Corvette 1966-74, Impala 1965-76, Malibu 1966-67, 1973-75, C1500 1990-93, Chevelle 1965-73, Blazer 1973-74, C10 Pickup 1968-80, Caprice 1966-76, C10 1975-81, El Camino 1966-75 + 102 more models

Basic Operating RPM Range

1,800-6,500

Grind Number

N+LS6S

Lifter Type

Solid Flat Tappet

Exhaust Valve Lift

0.539

Intake Valve Lift

0.544

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL11-671-4

K-Kit Upgrade

K11-671-4

Camshaft Series

Nostalgia Plus

SK-Kit Upgrade

SK11-671-4

Cam Type

Solid Flat Tappet

Usage

Street/Performance

Assembly Lubricant Included

Yes

Lifters Included

No

LOBE SEPARATION

112

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

Exhaust Duration at .050 inch Lift

236

Intake Duration at .050 Inch Lift

239

AMAZON ASIN

B0014F35SO

Advertised Exhaust Duration

283

Advertised Intake Duration

276

Engine Family

Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)

Great customer service and product pricing! Received tracking number very quickly and will recommend to anyone!!!!<br><br>Thanks

Need more options and infromation

So far so good. EZ website to use.

Purchase process an amount of time from purchase, an product being shipped is short an sweet!

Lowest price on the Internet. Fast shipping.

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