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COMP Cams 11-444-8 Xtreme Energy Hydraulic Roller Camshaft Chevy Big Block - 248/254 396-454

(Chevrolet Camaro 1967-72, Corvette 1967-74, Impala 1967-76, Malibu 1967, 1973-75, C1500 1990-93, Chevelle 1967-73, Blazer 1973-74 + 105 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

11-444-8
8 reviews
Sale Price

$577.95

3 left at this price

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Usually delivered within 2 days

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Product Details

The COMP Cams Xtreme Energy 11-444-8 hydraulic roller camshaft is engineered for Chevrolet Big Block 396-454 engines seeking substantial performance gains without sacrificing street driveability. This camshaft features a 248/254 duration profile with a quicker valve opening characteristic that maximizes area under the lift curve compared to traditional camshaft designs.

Key Features:

  • Hydraulic roller design for reduced friction and improved durability
  • 248/254 duration profile optimized for increased torque and horsepower
  • Enhanced throttle response and valve acceleration rates
  • Maintains adequate vacuum for power brakes and vacuum-dependent accessories
  • Compatible with both carbureted and fuel-injected applications
  • Designed specifically for Chevrolet Big Block 396-454 cubic inch engines

This camshaft delivers optimal performance when paired with aftermarket intake manifolds, headers, free-flowing exhaust systems, and lower gear ratios. The Xtreme Energy grind family is ideal for enthusiasts who demand race-inspired performance while retaining the comfort and reliability needed for street driving and daily use.

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 + 100 more models

Advertised Intake Duration

300

Grind Number

XR300HR

Intake Valve Lift

0.56

Intake Duration at .050 Inch Lift

248

Basic Operating RPM Range

3200-6,200

Camshaft Material

Austempered Ductile Iron

Cam and Lifter Kit Upgrade

CL11-444-8

K-Kit Upgrade

K11-444-8

SK-Kit Upgrade

SK11-444-8

Usage

Street/Performance

Assembly Lubricant Included

No

Lifters Included

No

LOBE SEPARATION

110

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

Lifter Type

Hydraulic Roller

Cam Type

Hydraulic Roller

Advertised Exhaust Duration

306

Exhaust Valve Lift

0.58

Exhaust Duration at .050 inch Lift

254

Engine Family

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

AMAZON ASIN

B000P5B64O

Camshaft Series

Xtreme Energy

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*

It was easiest and most responsible order I have ever experienced, and I am looking forward to do all my orders in future with your Co. Thanks autoplicity.

That was quick, I just hope I get the CORRECT part as hassle free and in the time I paid for.

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.

Great site. Provided needed technical specs. Shipped promptly. Although I had to ask for the tacking number, it was not emailed, one was provided promptly upon request.

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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