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COMP Cams 11-422-8 Xtreme Energy Hydraulic Roller Camshaft 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 + 105 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

11-422-8
6 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 Xtreme Energy 218/224 hydraulic roller camshaft is engineered for Big Block Chevrolet 396-454 engines seeking enhanced performance without sacrificing street manners. This camshaft features an aggressive valve opening profile that delivers increased throttle responsiveness and more area under the lift curve compared to older, conventional camshaft designs.

Key Features:

  • 218°/224° advertised duration for excellent mid-range torque and top-end horsepower
  • Hydraulic roller design provides reduced friction and improved durability over flat tappet designs
  • Quicker valve opening profile increases engine responsiveness across the RPM range
  • Maintains adequate vacuum for power brakes and vacuum-operated accessories
  • Preserves streetability and driveability for daily-driven applications
  • Compatible with stock or aftermarket valve train components

Recommended Applications:

  • Street performance and hot rod builds with mild to moderate modifications
  • Best performance with aftermarket intake manifolds, headers, and free-flowing exhaust systems
  • Optimized for carbureted applications with lower rear gear ratios
  • Ideal for engines seeking noticeable performance gains while retaining street manners

The Xtreme Energy camshaft family is designed to deliver measurable gains in torque and horsepower while maintaining the creature comforts that make your performance vehicle enjoyable for street use. This camshaft requires hydraulic roller lifters and appropriate valvetrain components for proper installation.

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 Exhaust Duration

276

Basic Operating RPM Range

1,600-5,400

Grind Number

XR270HR

Exhaust Valve Lift

0.51

Intake Valve Lift

0.51

Camshaft Material

Austempered Ductile Iron

Cam and Lifter Kit Upgrade

CL11-422-8

K-Kit Upgrade

K11-422-8

SK-Kit Upgrade

SK11-422-8

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.

Advertised Intake Duration

270

Camshaft Gear Attachment

3-Bolt

Lifter Type

Hydraulic Roller

Cam Type

Hydraulic Roller

AMAZON ASIN

B000V9GBWQ

Exhaust Duration at .050 inch Lift

224

Intake Duration at .050 Inch Lift

218

Engine Family

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

Camshaft Series

Xtreme Energy

Best price around. Great Communication. Fast shipping. What else can I ask for?<br>I have already purchased again from them.

Ordered the ARB 50QT fridge from Autoplicity b/c they had every merchant beat by more than $100. Very happy with the transaction and would highly recommend - best prices bare none. I called Auto Anything and was told they match pricing with most vendors - except Autoplicity. I can see why. My first order but not my last!

Best pricing I found anywhere on the part I needed, quick shipping, no hassle. Definitely going to be a repeat customer.

Very fast shipping, lowest prices on the web.

Wow a great price for a budget minded person,outstanding sales staff,tech advice.In these times were a dallor must go the mile I am glad that there is a company like Autoplicity out there.Helping the working man.It pays to shop Autoplicity,Thank-you.

Great prices and fast shipping. I had a question about the product and the had all the answers. I would definitely shop here again.

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