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COMP Cams K11-771-8 Xtreme Energy Solid Roller Cam K-Kit Big Block Chevy Engine Camshaft Kit - 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 + 104 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

K11-771-8
12 reviews
Sale Price

$1,639.95

1 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The COMP Cams Xtreme Energy K11-771-8 is a complete solid roller camshaft kit engineered for high-performance Chevrolet big block engines (396-454 cubic inches). This aggressive camshaft delivers a 242/248 duration split designed to maximize mid-range to top-end power, making it ideal for street/strip applications and serious performance builds.

Complete K-Kit Includes Everything You Need:

  • Xtreme Energy solid roller camshaft with 242/248 duration profile
  • High-performance solid roller lifters
  • Matched valve springs for proper valve control
  • Steel retainers and valve locks
  • Valve stem seals for oil control
  • Timing chain set for precise cam timing
  • Assembly lube for proper break-in
  • Installation instructions and COMP Cams decals

The Xtreme Energy series is designed for engines with aftermarket cylinder heads, headers, and performance intake manifolds. This solid roller design eliminates the break-in requirements of flat tappet cams while providing superior durability and performance at high RPM. Expect aggressive idle quality, strong acceleration, and significant power gains throughout the RPM range.

Application: Chevrolet Big Block V8 engines (396, 402, 427, 454 cubic inch variants). Requires compatible roller lifter provisions or retrofit components. Professional installation recommended.

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 + 99 more models

Basic Operating RPM Range

2,500-6,500

Intake Valve Lift

0.646

Exhaust Valve Lift

0.653

Camshaft Material

Austempered Ductile Iron

Kit Type

K-Kit - Complete Kit

AMAZON ASIN

B001R9HABU

Usage

Street/Performance

Assembly Lubricant Included

No

LOBE SEPARATION

110

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.

Gaskets Included

No

Camshaft Gear Attachment

3-Bolt

Exhaust Duration at .050 inch Lift

248

Intake Duration at .050 Inch Lift

242

Cam Type

Solid Roller

Lifters Included

Yes

Advertised Exhaust Duration

286

Valve Springs Included

Yes

Advertised Intake Duration

280

Lifter Type

Solid Roller

Engine Family

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

Camshaft Series

Xtreme Energy

Alright

Very easy shopping experience .

Everything I needed was in stock. Good price. Order arrived faster than expected. 5 stars and would recommend to a friend.

Excellent

Easy as can be to order!

Ordered two oxygen sensors but only one was shipped even though two were listed on the packing slip. I called customer service. A second sensor arrived two days later.

Moved through site with ease, found what I was looking for quickly. In and out!

Gorilla Automotive VS404-C Snap In Valve Stems

Great Price on products and Shipping

Fast shipping, Good communication, Highly recommended.!!!

quick delivery of the parts I need to fix my jeep

Great product. Good communication and customer service!!!

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