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COMP Cams 11-409-8 Nitrous HP Hydraulic Roller Camshaft 224/236 Big Block Chevy 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

11-409-8
7 reviews
Sale Price

$577.95

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The COMP Cams 11-409-8 Nitrous HP hydraulic roller camshaft is specifically engineered for nitrous oxide applications in Chevrolet Big Block engines ranging from 396 to 454 cubic inches. This performance camshaft features a 224/236 duration split designed to maximize power output when running nitrous systems while maintaining excellent drivability characteristics.

Key Features:

  • Hydraulic roller design reduces friction and wear while eliminating the need for break-in procedures
  • 224°/236° advertised duration optimized for nitrous oxide power delivery
  • Aggressive lobe profiles provide strong mid-range to top-end power
  • Engineered specifically for Big Block Chevy 396, 402, 427, and 454 engines
  • Compatible with stock or aftermarket roller lifters and valvetrain components
  • Precision ground from high-quality core material for durability under extreme cylinder pressures

This camshaft is ideal for street/strip applications running nitrous oxide systems, delivering the aggressive performance characteristics needed to handle the increased cylinder pressures while maintaining reliability. The hydraulic roller design offers quiet operation and reduced maintenance compared to flat tappet alternatives, making it an excellent choice for enthusiasts seeking maximum performance with nitrous.

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

Exhaust Valve Lift

0.547

Intake Valve Lift

0.537

Camshaft Material

Austempered Ductile Iron

Cam and Lifter Kit Upgrade

CL11-409-8

K-Kit Upgrade

K11-409-8

Camshaft Series

Nitrous HP

Grind Number

NX273HR

SK-Kit Upgrade

SK11-409-8

Assembly Lubricant Included

No

Lifters Included

No

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.

Advertised Intake Duration

273

Camshaft Gear Attachment

3-Bolt

LOBE SEPARATION

113

Lifter Type

Hydraulic Roller

Exhaust Duration at .050 inch Lift

236

Cam Type

Hydraulic Roller

AMAZON ASIN

B000P5G58G

Advertised Exhaust Duration

296

Usage

Street/Strip

Basic Operating RPM Range

1,800-5,800

Intake Duration at .050 Inch Lift

224

Engine Family

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

First of all, I can not believe how fast I recieved my order, 2 DAYS! Best of all, the instructions made it easy for a non mechanic like me to install.

They were Very quick and i was very happy with the service i got!! 9-10*

The ordering process was very simple and the prices could not be beat. The processing time to ship the order was a little longer than usual, but for the price savings, it was well worth it!

Ordered a CAI kit and Autoplicity had the lowest price. They're website didn't correctly match my vehicle to the product and it took a few days to ship. They're support was friendly and quick when I emailed them about the delay.

Great customer service, item shipped quickly. Very satisfied.

PARTS WERE CHEAPER THAN MOST

This is the easiest purchase I ever made. The visor is great and installation was a breeze. The service by Autoplicity was A-1. Shipping was better than standard. Will buy from them again.

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