Free Shipping on Auto Parts Orders Over $75.                           Order by 11 PM EST for Same Day Shipping!

COMP Cams K12-705-8 - Comp Cams 'Magnum' Mechanical Roller Camshafts



COMP Cams K12-705-8 - Comp Cams 'Magnum' Mechanical Roller Camshafts
COMP Cams K12-705-8 - Comp Cams 'Magnum' Mechanical Roller Camshafts

JEGS Part Number: 249-K12-705-8

Magnum Mechanical Roller Cam Complete Kit
Chevy Small Block 262-400ci 1955-98
  • Lift: .575"/.575"
  • Duration: 300°/300°
  • Lobe Separation Angle: 110°
  • RPM Range: 3000-7000

    COMP Cams K12-705-8 Details

    Chevy Small Block 262-400ci 1955-98

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

  • Comp Cams 'Magnum' Mechanical Roller Camshafts

    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.

  • COMP Cams K12-705-8

    Exhaust Valve Lift (in.)
    0.575
    Intake Valve Lift (in.)
    0.575
    Exh. Duration @ .050 in. (Deg)
    255
    Int. Duration @ .050 in. (Deg)
    255
    Exh. Duration Advertised (Deg)
    300
    Int. Duration Advertised (Deg)
    300
    RPM Range
    3000-7000
    Engine Make/Size
    Chevy Small Block (262-400)
    Lifter Type
    Mechanical Roller
    Usage
    Street/Strip
    Gaskets Included
    No
    Advertised Duration
    300 int./300 exh.
    Advertised Exhaust Duration
    300
    Advertised Intake Duration
    300
    Assembly Lubricant Included
    No
    Basic Operating RPM Range
    3,000-7,000
    Cam Style
    Mechanical roller tappet
    Computer-Controlled Compatible
    No
    Duration at 050 inch Lift
    255 int./255 exh.
    Exhaust Duration at 050 inch Lift
    255
    Exhaust Valve Lash (in.)
    0.02
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.575
    Grind Number
    CS 300A-R10
    Intake Duration at 050 inch Lift
    255
    Intake Valve Lash (in.)
    0.02
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.575
    Lifter Style
    Mechanical roller
    Lifters Included
    Yes
    Locks Included
    Yes
    Outside Diameter of Outer Spring (in.)
    1.46
    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 non-roller
    Valve Lift with Factory Rocker Arm Ratio
    0.575 int./0.575 exh.
    Valve Springs Included
    Yes
    Valve Springs Required
    No
    Valve Stem Seals Included
    Yes
    Lobe Separation (Deg)
    110
    Manufacturer's Part Number:
    K12-705-8
    COMP Cams 159 - COMP Cams Engine Break-In Oil Additive
    Only $13.99

    JEGS Performance Products 80521 - JEGS Premium Stud Mount Valve Spring Compressor Tool
    Only $44.99

    JEGS Performance Products 80523 - JEGS Valvetrain Checking Springs
    Only $10.99

    JEGS Performance Products 80518 - JEGS Stud Mount Valve Spring Compressor Tool
    Only $25.99


    See All Items You Need