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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-11-205-3
High Energy 268H Hydraulic Flat Tappet Camshaft Lift: .485" /.485" Duration 268°/268° RPM Range: 1500-5500
$29795
Ships on Sep 15, 2026
Lowest Price GuaranteeChevy 396-454ci Big Block 1965-96
- High Energy 268H Hydraulic Flat Tappet Camshaft
Lift:.485''/.485"
Duration 268°/268°
RPM Range:1500-5500
*Note: For 1965-1996 Big Block Chevy, 'STOCK SPRINGS CANNOT BE USED'
Preformance with slight rough idle in 396. Great for heavy towing in 454 c.i.
| Operating Range: | 1500-5500 RPM |
| Duration Advertised: | 268° Intake / 268° Exhaust |
| Duration @ .050' Lift: | 218° Intake / 218° Exhaust |
| Valve Lift w/1.7 Rockers: | .485' Intake / .485' Exhaust |
| Lobe Separation Angle: | 110° |
Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
Performance with slight rough idle in 396. Great for heavy towing in 454c.i.
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 Width3.1
Package Length24.3
Weight10.89 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)218
Cam StyleHydraulic flat tappet
Grind NumberCB 268H-10
Exh. Duration Advertised (Deg)268
Engine Make/SizeChevy Big Block (396-454)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.485
Int. Duration @ .050 In. (Deg)218
Basic Operating Rpm Range1,500-5,500
Intake Valve Lift0.485 in (12.319 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)268
Lobe Separation (Deg)110
Rpm Range1500-5500
Advertised Duration268 int./268 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.485
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.485 int./0.485 exh.
QuantitySold individually
Exhaust Valve Lift0.485 in (12.319 mm)
Advertised Intake Duration268
Intake Duration At 050 Inch Lift218
Exhaust Duration At 050 Inch Lift218
Advertised Exhaust Duration268
Lifter TypeHydraulic Flat Tappet
Duration At 050 Inch Lift218 int./218 exh.
Valve Springs RequiredYes
Vendor Part Number11-205-3
Package Qty1
Package TypeEA
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