0
Shop By Vehicle
Top Categories
All Categories

Top Categories

All Categories


Hi, ! (Not you?)
My Account
Track Order
Help
Contact Us
COMP Cams SK51-224-4

COMP Cams Xtreme Energy 274H Hydraulic Flat Tappet Camshaft Small Kit Lift: .488" /.491" Duration: 274°/286° RPM Range: 1800-6000

249-SK51-224-4

Free Shipping

$251.99
COMP Cams Xtreme Energy 274H Hydraulic Flat Tappet Camshaft Small Kit Lift: .488" /.491" Duration: 274°/286° RPM Range: 1800-6000 $251.99
To order this item contact Customer Service at 1-800-345-4545.
Xtreme Energy 274H Hydraulic Flat Tappet Camshaft Small Kit
Lift: .488''/.491''
Duration: 274°/286°
RPM Range: 1800-6000

COMP Cams SK51-224-4 Details

Pontiac 265-455ci V-8 1955-81

  • Produces Better Throttle Response
  • Produces Top Engine Horsepower
  • Delivers Increased Engine Vacuum
  • 1 Year Limited Warranty

  • Specifications:

    Intake Valve Lift (in.)
    0.488
    Exhaust Valve Lift (in.)
    0.491
    RPM Range
    1800-6000
    Int. Duration @ .050 in. (Deg)
    230
    Exh. Duration @ .050 in. (Deg)
    236
    Int. Duration Advertised (Deg)
    274
    Exh. Duration Advertised (Deg)
    286
    Lifter Type
    Hydraulic Flat Tappet
    Engine Make/Size
    Pontiac 265-455
    Usage
    Street/Performance
    Gaskets Included
    No
    Advertised Duration
    274 int./286 exh.
    Advertised Exhaust Duration
    286
    Advertised Intake Duration
    274
    Assembly Lubricant Included
    Yes
    Basic Operating RPM Range
    1,800-6,000
    Cam Style
    Hydraulic flat tappet
    Computer-Controlled Compatible
    No
    Duration at 050 inch Lift
    230 int./236 exh.
    Exhaust Duration at 050 inch Lift
    236
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.491
    Grind Number
    P XE274H-10
    Intake Duration at 050 inch Lift
    230
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.488
    Lifter Style
    Hydraulic flat tappet
    Lifters Included
    Yes
    Locks Included
    No
    Pushrods Included
    No
    Quantity
    Sold as a kit
    Retainers Included
    No
    Rocker Arms Included
    No
    Timing Chain and Gears Included
    Yes
    Timing Chain Style
    Double non-roller
    Valve Lift with Factory Rocker Arm Ratio
    0.488 int./0.491 exh.
    Valve Springs Included
    No
    Valve Springs Required
    Yes
    Valve Stem Seals Included
    No
    Lobe Separation (Deg)
    110
    Manufacturer's Part Number:
    SK51-224-4

    The Leading Edge of Valve Train Technology

    Comp Cams Xtreme Energy series are perfect for any street or street/strip application where both throttle response and top-end horsepower is desired. These camshafts are designed to take advantage of the latest and greatest in valvetrain technology . Their aggressive lobe design produces better throttle response and top end horsepower than other cams with the same duration @ .050'' lift, while delivering increased engine vacuum. We do not recommend the use of stock valve springs with these camshafts due to the aggressive lobe designs.

    Features:
  • Quicker opening lobe profiles deliver increased responsiveness & more area under the lift curve
  • More vacuum allows an increase in duration for improved performance and assists power brakes
  • Excellent performance in street carbureted applications
  • Best performance with aftermarket intake manifolds, headers, lower gear ratios

    Camshaft & Lifter Kits are indicated by a CL in their part number and include Camshaft, Lifters, Assembly Lube, Decals, and Instructions.

    Complete Kits are indicated by a K in their part number and include Camshaft, Lifters, Timing Chain & Gears, Valve Springs, Retainers, Locks, Assembly Lube, Decals, and Instructions.

    Small Kits are indicated by a SK in their part number and include Camshaft, Lifters, Timing Chain Set, Assembly Lube, Decals, and Instructions.

  • Would this work for a 2002 5.3 ls vortec motor

    Asked by: Ezzythemechanic
    No, you will need a kit for the LS series engine and it would use a roller lifter.
    Answered by: Rusty B
    Date published: 2018-02-28

    Will this work in my stock 5.7 vortec In my 96 chevy 1500

    Asked by: Joshmartin426
    No, the stock Vortec heads are limited to a max gross valve lift of .475". You would need to go slightly smaller on the cam size.
    Answered by: Dean R
    Date published: 2018-01-18

    Do i need anything else thats not in this kit ?

    Asked by: Marcos_avila2
    Not knowing everything you have done to your motor we can not say for sure if other parts are needed. With a cam change you will want springs to match,you will need gaskets etc. Please give us a call 800-345-4545 where one of our Technical sales staff can assist you further.
    Answered by: Jegs Tech
    Date published: 2017-10-10
    • y_2018, m_10, d_20, h_3CST
    • bvseo_bulk, prod_bvqa, vn_bulk_2.0.8
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_3
    • loc_en_US, sid_10001_10001_105436, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Items You Need

    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.