Nitrous HP Hyd. Roller Cam Complete Kit Chevy Big Block 396-454ci 1965-96 Retro-Fit Lift: .537"/.541"

Vehicle Info Needed

COMP CAMSPART NUMBER: 249-K11-411-8

Nitrous HP Hyd. Roller Cam Complete Kit Chevy Big Block 396-454ci 1965-96 Retro-Fit Lift: .537"/.541"

Name: Nitrous HP Hyd. Roller Cam Complete Kit Chevy Big Block 396-454ci 1965-96 Retro-Fit Lift: .537"/.541"
Brand: COMP CAMS
SKU: 249-K11-411-8
Price: 1623.95 USD
Availability: InStock

^$1,623⁹⁵

Ships on 10/21/2026

Lowest Price Guarantee

Chevy Big Block 396-454ci 1965-96

Retro-Fit For Non-Factory Roller Engines

Lift: .537"/.541"
Duration: 279°/294°
Lobe Separation Angle: 113°
RPM Range: 2000-6200
Maximize Performance
Excellent Performance With/With Out Nitrous
Incredible Gains With Nitrous
1 Year Limited Warranty
Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572

High performance street with 150+ hp nitrous kit or small supercharger, 2400+ stall and lower gears.

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 Height5.6

Package Width10.7

Package Length25.1

Weight30.65 PG

Part CategoryPerformance Parts

Exh. Duration @ .050 In. (Deg)242

Cam StyleHydraulic roller tappet

Grind NumberCB NX279HR-13

Exh. Duration Advertised (Deg)294

Locks IncludedYes

Engine Make/SizeChevy Big Block (396-454)

Retainers IncludedYes

Intake Valve Lift With Factory Rocker Arm Ratio (I0.537

Int. Duration @ .050 In. (Deg)230

Assembly Lubricant IncludedNo

Basic Operating Rpm Range2,000-6,200

Pushrods IncludedNo

Gaskets IncludedNo

Rocker Arms IncludedNo

Intake Valve Lift0.537 in (13.64 mm)

Computer-Controlled CompatibleNo

Int. Duration Advertised (Deg)279

Lobe Separation (Deg)113

Rpm Range1000-6200

Lifter StyleHydraulic roller

Advertised Duration279 int./294 exh.

Exhaust Valve Lift With Factory Rocker Arm Ratio (0.541

Valve Springs IncludedYes

UsageStreet/Strip

Valve Lift With Factory Rocker Arm Ratio0.537 int./0.541 exh.

QuantitySold as a kit

Valve Stem Seals IncludedYes

Exhaust Valve Lift0.541 in (13.741 mm)

Advertised Intake Duration279

Outside Diameter Of Outer Spring1.509 in (38.3 mm)

Intake Duration At 050 Inch Lift230

Exhaust Duration At 050 Inch Lift242

Timing Chain StyleDouble non-roller

Timing Chain And Gears IncludedYes

Advertised Exhaust Duration294

Lifter TypeHydraulic Roller

Part FitmentSemi Universal

Duration At 050 Inch Lift230 int./242 exh.

Valve Springs RequiredNo

Lifters IncludedYes

Vendor Part NumberK11-411-8

Package Qty1

Package TypeEA

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