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 12-556-4

Nitrous HP Hydraulic Flat Tappet Camshaft Chevy Small Block 262-400ci 1955-98 Lift: .462"/.480"

COMP Cams 12-556-4

249-12-556-4

jegs shipping
FREE Shipping
Ships from Manufacturer
COMP Cams 12-556-4 Nitrous HP Hydraulic Flat Tappet Camshaft Chevy Small Block 262-400ci 1955-98 Lift: .462"/.480" $146.99
Nitrous HP Hydraulic Flat Tappet Camshaft
Chevy Small Block 262-400ci 1955-98
  • Lift: .462"/.480"
  • Duration: 262°/280°
  • Lobe Separation Angle: 113°
  • RPM Range: 1600-5900

  • COMP Cams 12-556-4 Details

    Chevy Small Block 262-400ci 1955-98

    High performance street. With 100-150 HP nitrous kit or small blower.

    Specifications:

    Intake Valve Lift (in.)
    0.462
    Exhaust Valve Lift (in.)
    0.48
    RPM Range
    1600-5900
    Int. Duration @ .050 in. (Deg)
    218
    Exh. Duration @ .050 in. (Deg)
    230
    Int. Duration Advertised (Deg)
    262
    Exh. Duration Advertised (Deg)
    280
    Engine Make/Size
    Chevy Small Block (262-400)
    Lifter Type
    Hydraulic Flat Tappet
    Usage
    Street/Strip
    Advertised Duration
    262 int./280 exh.
    Advertised Exhaust Duration
    280
    Advertised Intake Duration
    262
    Basic Operating RPM Range
    1,600-5,900
    Cam Style
    Hydraulic flat tappet
    Computer-Controlled Compatible
    No
    Duration at 050 inch Lift
    218 int./230 exh.
    Exhaust Duration at 050 inch Lift
    230
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.48
    Grind Number
    CS NX262H-13
    Intake Duration at 050 inch Lift
    218
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.462
    Quantity
    Sold individually
    Valve Lift with Factory Rocker Arm Ratio
    0.462 int./0.480 exh.
    Valve Springs Required
    Yes
    Lobe Separation (Deg)
    113
    Manufacturer's Part Number:
    12-556-4

    Designed to work with nitrous to give you the most power possible while still maintaining the low end torque and response needed in the street driven applications. This is accomplished by optimizing the opening and closing events of the valves and the individual lobe profiles to better use the additional fuel and oxygen provided with nitrous kits. Delivers excellent performance off nitrous and incredible gains with nitrous. Also ideal when used with forced induction.

    Features:
  • Wider lobe separation and added exhaust duration from base XE series help shift the power to higher RPM to allow use in nitrous applications
  • Early exhaust opening helps scavenge the extra spent gasses from nitrous or forced induction
  • Better time slips for nitrous passes at the strip

    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
    Items You May Also Consider