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COMP Cams 11-674-4 Xtreme Energy Solid Flat Tappet Camshaft - BBC 396-454

(Chevrolet Camaro 1967-72, Corvette 1966-74, Impala 1965-76, Malibu 1966-67, 1973-75, C1500 1990-93, Chevelle 1965-73, Blazer 1973-74 + 107 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

11-674-4
7 reviews
Sale Price

$309.95

1 left at this price

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Usually delivered within 2 days

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Product Details

The COMP Cams 11-674-4 Xtreme Energy camshaft delivers aggressive performance for Chevrolet Big Block 396-454 cubic inch engines. This solid flat tappet camshaft features a 218/224 duration split designed to maximize mid-range to high-RPM power while maintaining excellent throttle response.

Camshaft Specifications:

  • Advertised Duration: 268°/274° intake/exhaust
  • Duration @ .050": 218°/224° intake/exhaust
  • Valve Lift: .454"/.475" intake/exhaust (with 1.7:1 rocker ratio)
  • Lobe Separation Angle: 110°
  • Recommended RPM Range: 1,500-6,000 RPM
  • Recommended Valve Springs: COMP Cams #981 or equivalent

Key Features:

  • Xtreme Energy lobe profile for maximum performance per duration degree
  • Solid flat tappet design for high-performance applications
  • Optimized for street/strip use with manual or automatic transmissions
  • Produces strong torque curve with excellent top-end power
  • Requires aftermarket valve springs and proper break-in procedure

This camshaft is ideal for street performance and weekend racing applications in Big Block Chevrolet engines. The aggressive profile provides a lopey idle and strong acceleration characteristics. Proper assembly lube and break-in oil with ZDDP additives are required for flat tappet camshaft installations.

Products specifications

Fits

Chevrolet Camaro 1967-72, Corvette 1966-74, Impala 1965-76, Malibu 1966-67, 1973-75, C1500 1990-93, Chevelle 1965-73, Blazer 1973-74, C10 Pickup 1968-80, Caprice 1966-76, C10 1975-81, El Camino 1966-75, Monte Carlo 1970-75 + 102 more models

Basic Operating RPM Range

1,000-5,600

Grind Number

XS256S

Lifter Type

Solid Flat Tappet

Intake Valve Lift

0.527

Exhaust Valve Lift

0.532

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL11-674-4

K-Kit Upgrade

K11-674-4

SK-Kit Upgrade

SK11-674-4

Cam Type

Solid Flat Tappet

Usage

Street/Performance

Assembly Lubricant Included

Yes

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

Advertised Exhaust Duration

262

Advertised Intake Duration

256

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)

AMAZON ASIN

B000P5B6D0

Camshaft Series

Xtreme Energy

product just as described, received in 3 days

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.

price was good and the sight was easy to use if the product is as good as everything else I'll be back.

Great prices will shop here again.

Excellent on-line merchant with outstanding customer service and the best prices on equipment and shipping. Highly reccomended!

Good prices and easy ordering process (order #18003). The only issue that I had was after placing the order, completing the entire process, I received three emails stating that "We noticed that you started checking out on our site, but didn't quite finish the process". After calling customer service, they ensured me that the order was complete. Since then, I receive the same email(3 emails at a time) on a daily basis. Just a little annoying, but easy enough to delete.

good

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