Nitrous HP Hydraulic Flat Tappet Camshaft and Lifter Kit Chevy Big Block 396-454ci 1965-96 Lift: .505"/.520"

Name: Nitrous HP Hydraulic Flat Tappet Camshaft and Lifter Kit Chevy Big Block 396-454ci 1965-96 Lift: .505"/.520"
Brand: COMP CAMS
SKU: 249-CL11-556-4
Price: 397.95 USD
Availability: InStock

^$397⁹⁵

Ships on 10/23/2026

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Chevy Big Block 396-454ci 1965-96

Lift: .505"/.520"
Duration: 262°/280°
Lobe Separation Angle: 113°
RPM Range: 1600-5900

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

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.

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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 Height3.2

Package Width5.6

Package Length25.3

Weight14.9 PG

Part CategoryPerformance Parts

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

Cam StyleHydraulic flat tappet

Grind NumberNX262H

Exh. Duration Advertised (Deg)280