Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededCOMP CAMSPART NUMBER: 249-CL11-678-5
Xtreme Energy Mechanical Flat Camshaft and Lifter Kit Lift: .590"/.598"
$48295
Ships on 10/21/2026
Lowest Price GuaranteeChevy Big Block 396-454ci 1965-96
- Xtreme Energy Mechanical Flat Camshaft and Lifter Kit
- Lift: .590"/.598"
- Duration: 282°/290°
- Lobe Separation Angle: 110°
- RPM Range 2400-6800
- Produces Better Throttle Response
- Produces Top Engine Horsepower
- Delivers Increased Engine Vacuum
- 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
Street/strip, 3000+ stall, likes headers and gears, rough idle.
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 Kit
BrandCOMP CAMS
Package Height3.1
Package Width5.6
Package Length25.3
Weight14.4 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)252
Cam StyleMechanical flat tappet
Grind NumberCB XS282S-10
Exh. Duration Advertised (Deg)290
Locks IncludedNo
Engine Make/SizeChevy Big Block (396-502)
Retainers IncludedNo
Intake Valve Lift With Factory Rocker Arm Ratio (I0.59
Int. Duration @ .050 In. (Deg)244
Assembly Lubricant IncludedYes
Basic Operating Rpm Range2,400-6,800
Pushrods IncludedNo
Gaskets IncludedNo
Intake Valve Lash0.016 in (0.406 mm)
Rocker Arms IncludedNo
Intake Valve Lift0.59 in (14.986 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)282
Lobe Separation (Deg)110
Rpm Range2400-6800
Lifter StyleMechanical flat tappet
Advertised Duration282 int./290 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.598
Valve Springs IncludedNo
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.590 int./0.598 exh.
QuantitySold as a kit
Valve Stem Seals IncludedNo
Exhaust Valve Lash0.016 in (0.406 mm)
Exhaust Valve Lift0.598 in (15.189 mm)
Advertised Intake Duration282
Intake Duration At 050 Inch Lift244
Exhaust Duration At 050 Inch Lift252
Timing Chain And Gears IncludedNo
Advertised Exhaust Duration290
Lifter TypeMechanical Flat Tappet
Duration At 050 Inch Lift244 int./252 exh.
Valve Springs RequiredYes
Lifters IncludedYes
Vendor Part NumberCL11-678-5
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
COMP CAMS
Magnum Double Roller Timing Set 1965-91 Chevy Big Block V8 396-454
Part Number : 249-2110
$11695
![Precision Cam Degree Wheel Kit [11 in.]](https://www.jegs.com/images/mini_200/500/555/555-81621.jpg)
![159 Engine Break-In Oil Additive [12-Ounce]](https://www.jegs.com/images/mini_200/200/249/249-159.jpg)
![Valve Spring Compressor [Stud Mount]](https://www.jegs.com/images/mini_200/500/555/555-80521.jpg)
![Valve Spring Compressor [Stud Mount]](https://www.jegs.com/images/mini_200/500/555/555-80518.jpg)
![Engine Assembly Lube [4 oz. Bottle]](https://www.jegs.com/images/mini_200/500/555/555-28000.jpg)
JEGS
Universal Camshaft Installation/Removal Tool Includes 4 camshaft adapters
Part Number : 555-80599
$4779$51.99
You Save$4.20
![Break-In/Engine Oil Supplement [12 oz. Bottle]](https://www.jegs.com/images/mini_200/500/555/555-28060.jpg)
COMP CAMS
Part Number : 249-2110
$11695
Some parts are not legal for use in California or other states with similar laws / regulations
