Nitrous HP Retro Fit Hyd. Roller Cam Complete Kit Chevy Small Block 262-400ci 1955-98 Lift: .520"/.540"

Vehicle Info Needed

COMP CAMSPART NUMBER: 249-K12-419-8

Nitrous HP Retro Fit Hyd. Roller Cam Complete Kit Chevy Small Block 262-400ci 1955-98 Lift: .520"/.540"

Name: Nitrous HP Retro Fit Hyd. Roller Cam Complete Kit Chevy Small Block 262-400ci 1955-98 Lift: .520"/.540"
Brand: COMP CAMS
SKU: 249-K12-419-8
Price: 1624.95 USD
Availability: InStock

^$1,624⁹⁵

Ships on 10/21/2026

Lowest Price Guarantee

Chevrolet 262-400ci 1955-98

Retro-Fit For Non-Factory Roller Engines

Lift: .520"/.540"
Duration: 288°/315°
Lobe Separation Angle: 113°
RPM Range: 2400-6500
Maximize Performance
Excellent Performance With/With Out Nitrous
Incredible Gains With Nitrous
1 Year Limited Warranty
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

175+ nitrous system. 2500+ Stall with lower gears and headers.

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.

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.

Part TypeCamshaft Kit

Product LineComp Cams Nitrous HP Cams

BrandCOMP CAMS

Package Height6.3

Package Width10.6

Package Length25.3

Weight26.45 PG

Part CategoryPerformance Parts

Exh. Duration @ .050 In. (Deg)248

Cam StyleHydraulic roller tappet

Grind NumberCS NX288HR-13

Exh. Duration Advertised (Deg)315

Locks IncludedYes

Engine Make/SizeChevy Small Block (262-400)

Retainers IncludedYes

Intake Valve Lift With Factory Rocker Arm Ratio (I0.52

Int. Duration @ .050 In. (Deg)236

Assembly Lubricant IncludedNo

Basic Operating Rpm Range2,400-6,500

Pushrods IncludedYes

Gaskets IncludedNo

Rocker Arms IncludedNo

Intake Valve Lift0.52 in (13.208 mm)

Computer-Controlled CompatibleNo

Int. Duration Advertised (Deg)288

Lobe Separation (Deg)113

Rpm Range2400-6500

Lifter StyleHydraulic roller

Advertised Duration288 int./315 exh.

Exhaust Valve Lift With Factory Rocker Arm Ratio (0.54

Valve Springs IncludedYes

UsageStreet/Strip

Valve Lift With Factory Rocker Arm Ratio0.520 int./0.540 exh.

QuantitySold as a kit

Valve Stem Seals IncludedYes

Exhaust Valve Lift0.54 in (13.716 mm)

Advertised Intake Duration288

Outside Diameter Of Outer Spring1.43 in (36.3 mm)

Intake Duration At 050 Inch Lift236

Exhaust Duration At 050 Inch Lift248

Timing Chain StyleDouble non-roller

Timing Chain And Gears IncludedYes

Advertised Exhaust Duration315

Lifter TypeHydraulic Roller

Part FitmentSemi Universal

Duration At 050 Inch Lift236 int./248 exh.

Valve Springs RequiredNo

Lifters IncludedYes

Vendor Part NumberK12-419-8

Package Qty1

Package TypeEA

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