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COMP Cams 11-560-4 Nitrous HP Hydraulic Flat Tappet Camshaft for Chevrolet Big Block 396-454

(Chevrolet Camaro 1967-72, Corvette 1967-74, Impala 1967-76, Malibu 1967, 1973-75, C1500 1990-93, Chevelle 1967-73, Blazer 1973-74 + 104 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

11-560-4
5 reviews
Sale Price

$309.95

1 left at this price

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Product Details

The COMP Cams 11-560-4 is a high-performance hydraulic flat tappet camshaft specifically engineered for nitrous oxide applications in Chevrolet Big Block engines (396-454 cubic inches). This camshaft delivers aggressive performance characteristics with 224/236 degrees of advertised duration, making it ideal for street/strip builds running nitrous injection systems.

Key Specifications:

  • Advertised Duration: 224° Intake / 236° Exhaust
  • Duration at .050": 224° Intake / 236° Exhaust
  • Valve Lift: .510" Intake / .540" Exhaust (with 1.7:1 rocker ratio)
  • Lobe Separation Angle: 110°
  • Hydraulic flat tappet design for reliable operation
  • Optimized lobe profiles for nitrous oxide power delivery

Performance Features:

  • Designed specifically for nitrous-assisted engines to handle the added cylinder pressure
  • Aggressive duration and lift profile delivers strong mid-range to top-end power
  • Tighter lobe separation angle increases overlap for enhanced power under nitrous
  • Hydraulic design maintains quiet operation and eliminates valve lash adjustment
  • Excellent choice for street/strip applications with 100-250 HP nitrous systems

This camshaft is designed to work with stock or aftermarket cylinder heads and requires compatible valve springs, lifters, and timing set. Best suited for engines with 9.5:1 or higher compression ratio, aftermarket intake manifold, headers, and a stall converter in the 2,800-3,200 RPM range. The COMP Cams Nitrous HP series delivers the optimized valve timing events needed to maximize power output when nitrous oxide is activated while maintaining good driveability.

Products specifications

Fits

Chevrolet Camaro 1967-72, Corvette 1967-74, Impala 1967-76, Malibu 1967, 1973-75, C1500 1990-93, Chevelle 1967-73, Blazer 1973-74, C10 Pickup 1968-74, Caprice 1967-76, C10 1975-80, El Camino 1967-75, Monte Carlo 1970-75 + 99 more models

Basic Operating RPM Range

2,000-6,200

Grind Number

NX268H

Cam Type

Hydraulic Flat Tappet

Exhaust Valve Lift

0.547

Intake Valve Lift

0.515

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL11-560-4

K-Kit Upgrade

K11-560-4

Camshaft Series

Nitrous HP

SK-Kit Upgrade

SK11-560-4

Assembly Lubricant Included

Yes

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.

Advertised Intake Duration

268

Camshaft Gear Attachment

3-Bolt

LOBE SEPARATION

113

Exhaust Duration at .050 inch Lift

236

AMAZON ASIN

B000P5G57M

Advertised Exhaust Duration

286

Usage

Street/Strip

Intake Duration at .050 Inch Lift

224

Engine Family

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

Title

Nitrous HP 224/236 Hydraulic Flat Cam for Chevrolet Big Block 396-454

Great pricing and quick shipping. GREAT

Awsome service and prices,Thanks alot

So far so good

Fast Easy and they have the best prices

This store had a lot of products more than most other sites I looked at. The order was processed quickley and shiped the next day. I will use them again.

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