My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

COMP Cams CL11-254-4 Xe Hydraulic Flat Cam and Lifter Kit for Chevy Big Block - 250/256 396-454

(Chevrolet Camaro 1967-72, Corvette 1966-74, Impala 1965-76, Malibu 1966-67, 1973-75, C1500 1990-93, Chevelle 1965-73, Blazer 1973-74 + 106 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

CL11-254-4
5 reviews
Sale Price

$397.95

2 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The COMP Cams CL11-254-4 Xe series camshaft and lifter kit delivers proven performance for Chevrolet Big Block 396-454 engines. This complete kit features a hydraulic flat tappet camshaft with 250 degrees intake duration and 256 degrees exhaust duration, designed to provide a strong mid-range power band with improved throttle response and excellent street manners.

Key Features:

  • Hydraulic flat tappet design for reliable, low-maintenance operation
  • 250/256 duration profile optimized for street and mild performance applications
  • Complete kit includes camshaft, lifters, assembly lube, decals, and installation instructions
  • Engineered specifically for Chevrolet Big Block 396-454 cubic inch engines
  • Xe series grind provides excellent power delivery from 1,500-5,500 RPM
  • Includes premium quality hydraulic lifters matched to camshaft specifications

This kit provides everything needed for a straightforward camshaft upgrade, making it ideal for street rods, muscle car restorations, and daily drivers seeking improved performance without sacrificing reliability. The included assembly lube ensures proper break-in and long-term durability.

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 + 101 more models

Advertised Intake Duration

294

Cam Type

Hydraulic Flat Tappet

Exhaust Valve Lift

0.593

Kit Type

Cl-Kit - Cam and Lifter Kit

Intake Valve Lift

0.588

Intake Duration at .050 Inch Lift

250

Camshaft Material

Cast Iron

AMAZON ASIN

B000P5DLWY

Usage

Street/Performance

Assembly Lubricant Included

Yes

LOBE SEPARATION

110

Valve Springs Required

Yes

Lifter Type

Hydraulic Flat Tappet

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

Basic Operating RPM Range

2,800-7000

Camshaft Gear Attachment

3-Bolt

Locks Included

No

Lifters Included

Yes

Retainers Included

No

Timing Chain and Gears Included

No

Advertised Exhaust Duration

306

Valve Stem Seals Included

No

Exhaust Duration at .050 inch Lift

256

Engine Family

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

Camshaft Series

Xtreme Energy

fairly easy to do

Best price on the internet. A lot cheaper than amazon, so I was pretty surprised.

Very prompt service constantly helping me keep track of my order.

I bought a bicycle rack. It seemed like the product was delivered before I had even known it was shipped. Great price!

Product (Dee-Zee nerf bars) was exactly as advertised. Buying experience was great. I did contact customer service via email to find out the shipping information. They were very helpful and replied within a few hours.

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy