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COMP Cams 11-246-20 Xtreme Energy Hydraulic Flat Tappet Camshaft Big Block Chevy 396-454

Manufacturer

Picture for manufacturer COMP Cams

Part Number

11-246-20
5 reviews
Sale Price

$422.95

2 left at this price

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Usually delivered within 2 days

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Product Details

The COMP Cams Xtreme Energy 11-246-20 hydraulic flat tappet camshaft is engineered specifically for Chevrolet Big Block engines (396-454 cubic inches). This performance camshaft features aggressive 230/236 duration specifications designed to deliver excellent mid-range to top-end power for street/strip applications.

Camshaft Specifications:

  • Advertised Duration: 280?/286? intake/exhaust
  • Duration at .050": 230?/236? intake/exhaust
  • Valve Lift: .509"/.525" intake/exhaust (with 1.7:1 rocker ratio)
  • Lobe Separation Angle: 110?
  • Hydraulic flat tappet design for reliable street performance
  • RPM Range: 2000-6000 RPM

Key Features:

  • Xtreme Energy lobe profiles provide aggressive valve action for improved cylinder filling
  • Nitride hardened for enhanced durability and wear resistance
  • Excellent choice for big block Chevy street machines with headers and higher compression
  • Produces noticeable lope at idle with strong throttle response
  • Compatible with stock or aftermarket hydraulic flat tappet lifters

This camshaft works best with a good aftermarket intake manifold, headers, and a 9.5:1 or higher compression ratio. Requires compatible valve springs and hydraulic flat tappet lifters (sold separately). Professional installation and proper break-in procedure recommended.

Products specifications

Basic Operating RPM Range

1,800-6,000

Cam Type

Hydraulic Flat Tappet

Intake Valve Lift

0.552

Camshaft Material

Nitrided Cast Iron

Assembly Lubricant Included

Yes

Lifters Included

No

LOBE SEPARATION

110

Valve Springs Required

Yes

Lifter Type

Hydraulic Flat Tappet

California Proposition 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

C.A.R.B. E.O. Number

N/A

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. Exemption Reason

N/A

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

274

Camshaft Gear Attachment

3-Bolt

Exhaust Duration at .050 inch Lift

236

Intake Duration at .050 Inch Lift

230

Grind Number

XE274H

Advertised Exhaust Duration

286

Usage

Street/Strip

AMAZON ASIN

B002EDX5XA

Exhaust Valve Lift

0.555

Engine Family

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

Camshaft Series

Xtreme Energy

found what I was looking for fast .

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 !

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Easy order placement, fast shipment

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