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COMP Cams CL11-677-4 Xtreme Energy 236/242 Solid Flat Tappet Cam and Lifter Kit for Chevy Big Block 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

CL11-677-4
8 reviews
Sale Price

$456.95

Estimated ship date Friday, November 20

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Live-in-stock inventory

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Product Details

The COMP Cams Xtreme Energy CL11-677-4 is a complete camshaft and lifter kit designed specifically for Chevrolet Big Block engines (396-454 cubic inches). This solid flat tappet camshaft delivers aggressive performance with 236°/242° advertised duration, providing increased horsepower and torque across the RPM range while maintaining excellent drivability.

Key Features:

  • Solid flat tappet design for high-performance applications
  • 236° intake / 242° exhaust advertised duration
  • Engineered for Chevrolet Big Block 396-454 engines
  • Xtreme Energy profile optimized for street/strip performance
  • Increased valve lift for improved airflow and power
  • Complete kit includes camshaft, lifters, assembly lube, decals, and installation instructions

This kit provides everything needed for a successful camshaft installation, including high-quality solid lifters matched to the cam profile and premium assembly lube to ensure proper break-in. The Xtreme Energy series is ideal for enthusiasts seeking noticeable performance gains with a lopey idle and strong mid-to-high RPM power delivery. Perfect for muscle car restorations, street rods, and weekend warriors demanding serious performance from their big block Chevrolet.

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 Exhaust Duration

280

Lifter Type

Solid Flat Tappet

Kit Type

Cl-Kit - Cam and Lifter Kit

Intake Valve Lift

0.568

Exhaust Valve Lift

0.578

Camshaft Material

Cast Iron

Cam Type

Solid Flat Tappet

AMAZON ASIN

B001R9BUAW

Usage

Street/Performance

Assembly Lubricant Included

Yes

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.

Gaskets Included

No

Advertised Intake Duration

274

Basic Operating RPM Range

2,000-6,400

Camshaft Gear Attachment

3-Bolt

Locks Included

No

Exhaust Duration at .050 inch Lift

242

Intake Duration at .050 Inch Lift

236

Lifters Included

Yes

Retainers Included

No

Timing Chain and Gears Included

No

Valve Stem Seals Included

No

Engine Family

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

Camshaft Series

Xtreme Energy

I shows that it is "in stock" and that it will "ship immediately"... We'll see what happens.

Quick Service and great pricing!

Fast shipping and the lowest price. Very impressed.

I ordered the HuskyLiners 98891 Floor Liners for my 2012 Hyundai Elantra on 5/29, received them 5/31. Order #15417. Apparently they have warehouses all over the country to ensure quick delivery. They had the best price on the net. Item arrived in perfect condition. <br><br>Their website needs a little work because I found the item thru Google and not directly from their website. You also can't edit your cart unless you register first which was annoying. Items could use product descriptions - you have to get info from the manufacturer's site. The real-time inventory was a plus.<br><br>Deducted a star because their website needs work.

Bought some wire looms for my Chevy from them. Great price, service, and shipping speed!

We looked a lot of places online for the steering stabilizer for our vehicle. We priced and looked to find out who had the best product and fastest shipping. We were so glad that Autoplicity was able to have just what we needed. We highly recommend that you visit autopicity.com for all you vehicle needs and we thank Autoplicity for their expediency in getting us our stabilizer.

Good prices, fast shipping, A+

After checking amazon, ebay, various other general and specialty online parts suppliers and local brick and mortar supply houses, Autoplicity's was hands down the best overall (price + shipping) price for the product.

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