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Nitrous HP Hydraulic Flat Tappet Camshaft Complete Kit Chevy Small Block 262-400ci 1955-98 Lift: .434"/.464"
InfoVehicle Info Needed
COMP CAMSPART NUMBER: 249-K12-552-4

Nitrous HP Hydraulic Flat Tappet Camshaft Complete Kit Chevy Small Block 262-400ci 1955-98 Lift: .434"/.464"

$65595
ShippingShips on 12/18/2026
Lowest PriceLowest Price Guarantee

Items You Need

Engine Assembly Lube [4 oz. Bottle]

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Engine Assembly Lube [4 oz. Bottle]

Part Number : 555-28000
$599$6.99
You Save$1.00
Universal Camshaft Installation/Removal Tool Includes 4 camshaft adapters

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Universal Camshaft Installation/Removal Tool Includes 4 camshaft adapters

Part Number : 555-80599
$4779$51.99
You Save$4.20
Valvetrain Checking Springs Light tension springs

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Valvetrain Checking Springs Light tension springs

Part Number : 555-80523
$839$8.99
You Save$0.60
Break-In/Engine Oil Supplement [12 oz. Bottle]

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Break-In/Engine Oil Supplement [12 oz. Bottle]

Part Number : 555-28060
$1009$11.99
You Save$1.90

Chevy Small Block 262-400ci 1955-98
    Nitrous HP Hydraulic Flat Tappet Camshaft Complete Kit
    Chevy Small Block 262-400ci 1955-98
  • Lift: .434"/.464"
  • Duration: 256°/268°
  • Lobe Separation Angle: 113°
  • RPM Range: 1200-5600

    Works well in near stock engines with up to 125 HP nitrous kits.

    265, 283, 307, 302, 305, 327, 350, 383, 400, 427, L46, L48, L65, LM1, LT-1, L82, L81, LS9, L83, L98, L05, LG3, LG4, LT1, LT4, Camaro, Corvette, Chevelle, Stingray, Silverado, C10, Firebird, Chevrolet, Chevy, Small Block Chevy, Caprice, Malibu, Impala, Nova, 355, GEN1, Monte Carlo, S10


    Works well in near stock engines with up to 125 hp nitrous kits.

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

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.

Show MoreFeatures:
  • 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.

Part TypeCamshaft Kit
Product LineComp Cams Nitrous HP Cams
BrandCOMP CAMS
Package Height5.0
Package Width10.5
Package Length26.0
Weight25.0 PG
Part CategoryPerformance Parts
UsageStreet/Strip
Intake Valve Lift0.434 in (11.024 mm)
Int. Duration Advertised (Deg)256
Exh. Duration @ .050 In. (Deg)222
Rpm Range1200-5600
Lifter TypeHydraulic Flat Tappet
Exh. Duration Advertised (Deg)268
Part FitmentSemi Universal
Engine Make/SizeChevy Small Block (262-400)
Int. Duration @ .050 In. (Deg)212
Exhaust Valve Lift0.464 in (11.786 mm)
Vendor Part NumberK12-552-4
Package Qty1
Package TypeEA
Some parts are not legal for use in California or other states with similar laws / regulations
p65 warning