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 CL51-223-4 Xtreme Energy Hydraulic Flat Camshaft and Lifter Kit for Pontiac - 265-455

(Pontiac GTO 1964-73, Firebird 1967-81, Grand Prix 1962-80, Grand Am 1973-75, 1978-80, Bonneville 1959-80, LeMans 1963-81, Catalina 1959-80 + 18 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

CL51-223-4
4 reviews
Sale Price

$397.95

In Stock (6)

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 Xtreme Energy CL51-223-4 is a complete camshaft and lifter kit designed specifically for Pontiac V8 engines ranging from 265 to 455 cubic inches. This hydraulic flat tappet camshaft delivers increased performance with a 224/230 duration split, making it an excellent choice for street/strip applications seeking improved throttle response and mid-range power without sacrificing street manners.

Key Specifications:

  • Advertised Duration: 268°/280° intake/exhaust
  • Duration at .050": 224°/230° intake/exhaust
  • Valve Lift: .447"/.465" intake/exhaust (with 1.5:1 rocker ratio)
  • Lobe Separation Angle: 110°
  • Recommended RPM Range: 1,500-5,800
  • Hydraulic flat tappet design

Complete Kit Includes:

  • Xtreme Energy camshaft
  • Hydraulic flat tappet lifters (16)
  • Assembly lube for proper break-in
  • COMP Cams decals
  • Detailed installation instructions

The Xtreme Energy series features aggressive lobe profiles that maximize performance while maintaining compatibility with stock valve springs and other factory components. This camshaft produces a noticeable lope at idle and delivers strong acceleration throughout the power band. Ideal for Pontiac engines in street rods, muscle cars, and performance street applications where reliability and bolt-in performance are priorities.

Application Notes: Designed for Pontiac V8 engines including 265, 301, 326, 350, 389, 400, 421, 428, and 455 cubic inch displacements. May require aftermarket valve springs depending on application. Professional installation recommended.

Products specifications

Fits

Pontiac GTO 1964-73, Firebird 1967-81, Grand Prix 1962-80, Grand Am 1973-75, 1978-80, Bonneville 1959-80, LeMans 1963-81, Catalina 1959-80, Tempest 1961-70, Ventura 1960-61, 1972-75, 1977, Grandville 1971-75 + 15 more models

Advertised Exhaust Duration

280

Basic Operating RPM Range

1,600-5,800

Cam Type

Hydraulic Flat Tappet

Kit Type

Cl-Kit - Cam and Lifter Kit

Intake Valve Lift

0.477

Camshaft Material

Cast Iron

AMAZON ASIN

B000R9XELG

Engine Family

Pontiac 265-455 C.I. 8 Cylinder (1955-1981)

Usage

Street/Performance

Assembly Lubricant Included

Yes

Camshaft Gear Attachment

1-Bolt

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

Advertised Intake Duration

268

Locks Included

No

Exhaust Duration at .050 inch Lift

230

Lifters Included

Yes

Retainers Included

No

Timing Chain and Gears Included

No

Exhaust Valve Lift

0.48

Intake Duration at .050 Inch Lift

224

Valve Stem Seals Included

No

Camshaft Series

Xtreme Energy

Great product, fast shipping!!

Unbeleively fast shipping. I ordered on a Tuesday night, and it was delivered to my door by Thursday. Plus, the item was the cheapest with shipping on the web! I will most certainly be doing business with them again!

This is my first purchase. So far, it's going well.

Great selection and easy checkout! The only thing is I didnt get an email confirmation as soon as I order which made me wonder is the transaction went through. I did get an email once the items were shipped though.

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