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COMP Cams 46-422-9 Xtreme Energy Hydraulic Roller Camshaft GM 8.1L Vortec 8100

(2001-2007 Chevrolet Silverado 2500 HD; 2001-2002 Chevrolet Express 3500; 2001-2007 Chevrolet Silverado 3500; 2001-2006 Chevrolet Suburban 2500 + 1 more model)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

46-422-9
4 reviews
Sale Price

$558.95

In Stock (5)

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Usually delivered within 2 days

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Product Details

The COMP Cams Xtreme Energy 46-422-9 hydraulic roller camshaft is engineered specifically for GM 8.1L Vortec 8100 engines, delivering substantial power gains throughout the RPM range. This cam features aggressive 218/224 duration specs at 0.050" lift, making it ideal for street/strip trucks and RVs looking for improved throttle response and mid-range torque.

Key Specifications:

  • Duration at 0.050": 218° intake / 224° exhaust
  • Advertised duration: 280° intake / 286° exhaust
  • Valve lift (with 1.7 rocker ratio): 0.510" intake / 0.520" exhaust
  • Lobe separation angle: 112°
  • Hydraulic roller design for durability and low maintenance
  • Compatible with stock valve springs and components

Performance Benefits:

  • Increased horsepower and torque over stock camshaft
  • Improved throttle response and acceleration
  • Stronger mid-range power for towing and hauling applications
  • Maintains acceptable idle quality for street use
  • Works with stock fuel injection and computer systems

The Xtreme Energy series from COMP Cams utilizes advanced lobe profiles optimized for hydraulic roller applications, providing the performance of aggressive cam timing while maintaining reliability. This camshaft is designed to work with factory hydraulic roller lifters and requires no special valvetrain modifications, making it an excellent upgrade for GM 8.1L engines in trucks, SUVs, and motorhomes.

Note: Professional installation recommended. Camshaft may require computer recalibration for optimal performance. Sold as camshaft only; lifters, timing set, and gaskets sold separately.

Products specifications

Fits

2001-2007 Chevrolet Silverado 2500 HD; 2001-2002 Chevrolet Express 3500; 2001-2007 Chevrolet Silverado 3500; 2001-2006 Chevrolet Suburban 2500; 2002-2006 Chevrolet Avalanche 2500

Advertised Exhaust Duration

276

Grind Number

XR270HR

Exhaust Valve Lift

0.51

Intake Valve Lift

0.51

Engine Family

GM 8100/8.1L 8 Cylinder (2001+)

AMAZON ASIN

B000P5DE2G

Usage

Street/Performance

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

270

LOBE SEPARATION

114

Lifter Type

Hydraulic Roller

Cam Type

Hydraulic Roller

Camshaft Material

Billet Steel

Basic Operating RPM Range

1,200-5,200

Exhaust Duration at .050 inch Lift

224

Intake Duration at .050 Inch Lift

218

Camshaft Series

Xtreme Energy

I paid for 2nd day shipping and 5 days later they were shipped out. So, I should receive my rotors in a full week from when I paid for 2 day shipping. I called customer service and they discounted the shipping rate to ground service. At least they were polite and helpful in the phone.

great experience, good price, item arrived within 4 days of purchase, would do business with again in future !

quick and easy

Easy order placement, fast shipment

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