Drag Race Mechanical Roller Camshaft Lift .748"/.710" Duration 311/315 RPM Range 5000-7500

Vehicle Info Needed

COMP CAMSPART NUMBER: 249-11-825-9

Drag Race Mechanical Roller Camshaft Lift .748"/.710" Duration 311/315 RPM Range 5000-7500

Name: Drag Race Mechanical Roller Camshaft Lift .748"/.710" Duration 311/315 RPM Range 5000-7500
Brand: COMP CAMS
SKU: 249-11-825-9
Price: 516.95 USD
Availability: InStock

^$516⁹⁵

Ships on 09/15/2026

Lowest Price Guarantee

Chevy 396-454ci Big Block 1965-96

Lift

Duration

RPM Range

Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572

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

Part TypeCamshaft

BrandCOMP CAMS

Package Height2.8

Package Width2.8

Package Length24.2

Weight10.5 PG

Part CategoryPerformance Parts

Exh. Duration @ .050 In. (Deg)284

Cam StyleMechanical roller tappet

Grind NumberCB 311R-10

Exh. Duration Advertised (Deg)315

Engine Make/SizeChevy Big Block (396-454)

Intake Valve Lift With Factory Rocker Arm Ratio (I0.748

Int. Duration @ .050 In. (Deg)274

Basic Operating Rpm Range5,000-7,500

Intake Valve Lash0.026 in (0.66 mm)

Intake Valve Lift0.748 in (18.999 mm)

Computer-Controlled CompatibleNo

Int. Duration Advertised (Deg)311

Lobe Separation (Deg)110

Rpm Range5000-7500

Advertised Duration311 int./315 exh.

Exhaust Valve Lift With Factory Rocker Arm Ratio (0.71

UsageStrip

Valve Lift With Factory Rocker Arm Ratio0.748 int./0.710 exh.

QuantitySold individually

Exhaust Valve Lash0.028 in (0.711 mm)

Exhaust Valve Lift0.71 in (18.034 mm)

Advertised Intake Duration311

Intake Duration At 050 Inch Lift274

Exhaust Duration At 050 Inch Lift282

Advertised Exhaust Duration315

Lifter TypeMechanical Roller

Part FitmentSemi Universal

Duration At 050 Inch Lift274 int./282 exh.

Valve Springs RequiredYes

Vendor Part Number11-825-9

Package Qty1

Package TypeEA

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