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COMP Cams 12-552-4 - Camshaft CS Nx256H-13

COMP Cams 12-552-4 - Camshaft CS Nx256H-13

COMP Cams | 12-552-4
SKU: COMP-12-552-4
Regular price $309.95 USD
Regular price $340.94 USD Sale price $309.95 USD
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COMP Cams 12-552-4 - Camshaft CS Nx256H-13

Nitrous HP 212/222 Hydraulic Flat Cam for Chevrolet Small Block

Fits '58-'02 262-400 c.i.d. Chevy Small Blocks

  • Works well in near stock engines with up to 125 HP nitrous kits
  • Xtreme Energyâ„¢ Cams are designed to maximize torque, acceleration and throttle response while providing excellent high RPM horsepower. A faster intake valve opening increases engine vacuum and enhances throttle response. Special intake closing ramps close the valve sooner, providing more cylinder pressure and torque without resulting in excessive valve train noise. Faster ramps achieve maximum velocity sooner, increasing the area under the lift curve and providing maximum horsepower. Smoother exhaust designs allow for a more effective purge of spent gasses from the combustion chamber to further increase horsepower.
  • For Carb or Tunable Fuel Injection3
  • 1: Cams for '55-'57 engines can be custom ordered. 2: The '87+ Chevy Small Block received provisions for Roller lifters. Most '87 - '93 GM cars came with Roller lifters, but most '87 - '95 trucks came with flat tappet lifters in Roller lifter style blocks. If a Roller Cam is desired and your block has OEM-style Roller Cam provisions. COMP Hydraulic Roller Lifter Install Kit for '87-'90 Blocks or '91-'02 Blocks can be purchased, as well as a '87+ OE-Style Hydraulic Roller Cam.
    Camshaft Series: Nitrous HP
    Usage: Street/Strip
    Cam Type: Hydraulic Flat Tappet
    Grind Number: NX256H
    Basic Operating RPM Range: 1,200-5,600
    Intake Duration at .050 Inch Lift: 212
    Exhaust Duration at .050 inch Lift: 222
    Advertised Intake Duration: 256
    Advertised Exhaust Duration: 268
    Lobe Separation: 113
    Intake Valve Lift: 0.434
    Exhaust Valve Lift: 0.464
    Lifters Included: No
    Valve Springs Required: Yes
    Assembly Lubricant Included: Yes
    Camshaft Gear Attachment: 3-Bolt
    Camshaft Material: Cast Iron
    Engine Family: Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
    Cam and Lifter Kit Upgrade: CL12-552-4
    K-Kit Upgrade: K12-552-4
    Lifter Type: Hydraulic Flat Tappet
    SK-Kit Upgrade: SK12-552-4
    Amazon ASIN: B000P5D8GI
    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 Federally Certified Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of 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 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. Exemption Reason: N/A
    C.A.R.B. E.O. Number: N/A
    Grind Number: NX256H
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