Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededCOMP CAMSPART NUMBER: 249-23-230-4
Xtreme Engergy 268S Camshaft Only Lift .488"/.501 Duration 268
$30995
Ships on 09/14/2026
Lowest Price GuaranteeChrysler 383-440ci Big Block 1959-80
- Xtreme Engergy 268S Camshaft Only
- Produces Better Throttle Response
- Produces Top Engine Horsepower
- Delivers Increased Engine Vacuum
- 1 Year Limited Warranty
273, 360, 318, AMC, Dodge, Mopar, Plymouth, Dart, Road Runner, Charger, Challenger, 383, 400, 440, 426, HEMI, 426 Wedge, 426 HEMI, RB, B, HEMI, 392, Chrysler, LA
Excellent for street and mild strip, 2200+ stall or 4 speed.
Lift .488"/.501
Duration 268
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 Height2.75
Package Width3.0
Package Length24.5
Weight10.3 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)236
Cam StyleMechanical flat tappet
Grind NumberXS268S
Exh. Duration Advertised (Deg)274
Engine Make/SizeMopar 383-440
Intake Valve Lift With Factory Rocker Arm Ratio (I0.488
Int. Duration @ .050 In. (Deg)230
Basic Operating Rpm Range1,800-5,800
Intake Valve Lash0.016 in (0.406 mm)
Intake Valve Lift0.488 in (12.395 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)268
Lobe Separation (Deg)110
Rpm Range1800-5800
Advertised Duration268 int./274 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.501
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.488 int./0.501 exh.
Camshaft Gear Attachment3-bolt
QuantitySold individually
Exhaust Valve Lash0.018 in (0.457 mm)
Exhaust Valve Lift0.501 in (12.725 mm)
Advertised Intake Duration268
Intake Duration At 050 Inch Lift230
Exhaust Duration At 050 Inch Lift236
Advertised Exhaust Duration274
Lifter TypeMechanical Flat Tappet
Duration At 050 Inch Lift230 int./236 exh.
Valve Springs RequiredYes
Vendor Part Number23-230-4
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
![Valve Spring Compressor [Stud Mount]](https://www.jegs.com/images/mini_200/500/555/555-80518.jpg)
JEGS
Universal Camshaft Installation/Removal Tool Includes 4 camshaft adapters
Part Number : 555-80599
$4779$51.99
You Save$4.20
COMP CAMS
10° Super Lock Steel Retainers Valve Spring Diameter: 1.500" to 1.550"
Part Number : 249-748-16
$9095
COMP CAMS
Magnum Double Roller Timing Set 1956-79 Chrysler V8 383-440 (Single-Bolt Gear)
Part Number : 249-2104
$8895
![Valve Spring Compressor [Stud Mount]](https://www.jegs.com/images/mini_200/500/555/555-80521.jpg)
COMP CAMS
10° Super Lock Steel Retainers Valve Spring Diameter: 1.500" to 1.550"
Part Number : 249-741-16
$9095
![Engine Assembly Lube [4 oz. Bottle]](https://www.jegs.com/images/mini_200/500/555/555-28000.jpg)
![159 Engine Break-In Oil Additive [12-Ounce]](https://www.jegs.com/images/mini_200/200/249/249-159.jpg)
![Break-In/Engine Oil Supplement [12 oz. Bottle]](https://www.jegs.com/images/mini_200/500/555/555-28060.jpg)
![Precision Cam Degree Wheel Kit [11 in.]](https://www.jegs.com/images/mini_200/500/555/555-81621.jpg)
Some parts are not legal for use in California or other states with similar laws / regulations
