12 Days of Christmas
1-800-345-4545
FREE SHIPPING!
Orders Over $95
Same Day Shipping Before 11 PM ET
0
My Cart
$0.00
Shop By Vehicle
Shop By
Category
All Categories

Rebates
Gift Certificates
My Account
E-Mail Signup
Catalog Request
Help

COMP Cams K51-751-9

Magnum Mechanical Roller Cam Complete Kit Pontiac 265-455ci 1955-1981 Lift: .550"/.550"

COMP Cams K51-751-9

249-K51-751-9

jegs shipping
FREE Shipping
$1,090.99
COMP Cams K51-751-9 Magnum Mechanical Roller Cam Complete Kit Pontiac 265-455ci 1955-1981 Lift: .550"/.550" $1,090.99
To order this item contact Customer Service at 1-800-345-4545.
Magnum Mechanical Roller Cam Complete Kit
Pontiac 265-455ci 1955-1981
  • Lift: .550"/.550"
  • Duration: 288°/288°
  • Lobe Separation Angle: 110°
  • RPM Range: 2200-6500

  • COMP Cams K51-751-9 Details

    Pontiac 265-455ci 1955-1981

  • Cams Are Very Aggressive
  • Designed For Performance Oriented Vehicles
  • Deliver More Power Than Standard Camshafts
  • 1 Year Limited Warranty

  • Specifications:

    Exhaust Valve Lift (in.)
    0.55
    Intake Valve Lift (in.)
    0.550
    RPM Range
    2200-6500
    Exh. Duration @ .050 in. (Deg)
    244
    Int. Duration @ .050 in. (Deg)
    244
    Exh. Duration Advertised (Deg)
    288
    Int. Duration Advertised (Deg)
    288
    Lifter Type
    Mechanical Roller
    Engine Make/Size
    Pontiac 265-455
    Usage
    Street/Strip
    Gaskets Included
    No
    Advertised Duration
    288 int./288 exh.
    Advertised Exhaust Duration
    288
    Advertised Intake Duration
    288
    Assembly Lubricant Included
    No
    Basic Operating RPM Range
    2,200-6,500
    Cam Style
    Mechanical roller tappet
    Computer-Controlled Compatible
    No
    Duration at 050 inch Lift
    244 int./244 exh.
    Exhaust Duration at 050 inch Lift
    244
    Exhaust Valve Lash (in.)
    0.02
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.55
    Grind Number
    288R
    Intake Duration at 050 inch Lift
    244
    Intake Valve Lash (in.)
    0.02
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.55
    Lifter Style
    Mechanical roller
    Lifters Included
    Yes
    Locks Included
    Yes
    Outside Diameter of Outer Spring (in.)
    1.489
    Pushrods Included
    No
    Quantity
    Sold as a kit
    Retainers Included
    Yes
    Rocker Arms Included
    No
    Timing Chain and Gears Included
    Yes
    Timing Chain Style
    Double roller
    Valve Lift with Factory Rocker Arm Ratio
    0.550 int./0.550 exh.
    Valve Springs Included
    Yes
    Valve Springs Required
    No
    Valve Stem Seals Included
    Yes
    Lobe Separation (Deg)
    110
    Manufacturer's Part Number:
    K51-751-9

    Magnum Cams are very aggressive and specifically designed for the street enthusiast looking for more power with that Pro Street sound. Intended for performance oriented vehicles that will see little street use. The idle characteristics of your engine will change due to the increased duration and overlap of the Comp Cams Magnum Cam Series. You will notice a racey idle with the 282-grind while the 294 and 306-grinds will produce a rough or ''rumbly'' idle. Stock components are generally incompatible. Changes are needed in rear end gear ratios, headers and the torque converter. Magnum Cams will affect your power accessories to a certain extent. The 280 and 292-grinds are the biggest cams that should be used with power assisted brakes, air conditioning, etc. You should remember that the bigger the engine is, the less the cam will affect the vacuum which affects your power accessories. The smaller your engine is, the more the Magnum Camshaft will affect your power accessories. Most late model vehicles have a vacuum canister. If your vehicle does not have a vacuum canister, it may be necessary to add one.

    Features:
  • Great high RPM power
  • Easy on valve train parts
  • Can be used with mild ratio rocker arms and traditional performance valve springs
  • Best with aftermarket converter and 9.5:1+ compression

    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.

  • Items You Need