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COMP Cams K51-226-4 Xtreme Energy Hydraulic Flat Cam K-Kit Pontiac Engine Camshaft Kit - for 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

K51-226-4
8 reviews
Sale Price

$702.95

Estimated ship date Saturday, November 21

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Product Details

The COMP Cams K51-226-4 Xtreme Energy K-Kit is a complete camshaft package designed specifically for Pontiac 265-455 cubic inch V8 engines. This comprehensive kit delivers improved performance with a 250/256 duration hydraulic flat tappet camshaft profile that provides excellent low-end to midrange power with a smooth idle.

Complete K-Kit Includes Everything You Need:

  • Xtreme Energy 250/256 hydraulic flat tappet camshaft
  • Hydraulic lifter set matched to cam profile
  • High-performance valve springs for proper valvetrain control
  • Spring 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 decals

This kit is ideal for street performance applications where you want noticeable power gains without sacrificing drivability. The Xtreme Energy series provides a great balance of performance and street manners, making it perfect for daily drivers, weekend cruisers, and street/strip combinations. By including all critical valvetrain components, this K-Kit ensures compatibility and takes the guesswork out of selecting individual parts.

Performance Characteristics: The 250/256 duration profile provides a noticeable performance increase over stock while maintaining good vacuum for power brakes and automatic transmissions. Expect a mild performance idle and strong throttle response throughout the RPM range.

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 Intake Duration

294

Cam Type

Hydraulic Flat Tappet

Intake Valve Lift

0.519

Exhaust Valve Lift

0.524

Basic Operating RPM Range

2,800-6500

Intake Duration at .050 Inch Lift

250

Camshaft Material

Cast Iron

Kit Type

K-Kit - Complete Kit

AMAZON ASIN

B001R9FMAQ

Engine Family

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

Usage

Street/Performance

Assembly Lubricant Included

Yes

LOBE SEPARATION

110

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

Lifters Included

Yes

Advertised Exhaust Duration

306

Valve Springs Included

Yes

Exhaust Duration at .050 inch Lift

256

Camshaft Series

Xtreme Energy

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Quick and easy! the best!

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