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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-23-249-4
Comp Cams Magnum Mechanical Flat Tappet Camshafts
$18299
Ships on 09/10/2026
Lowest Price GuaranteeChrysler 383-440 C.I. 8 CYL. 1959-1980
- Magnum 306S Mechanical Flat Tappet Camshaft
Lift: .555"/.555"
Duration: 306°/306°
Lobe Separation Angle: 110°
RPM Range: 3500-6500
Serious street/strip effort for 440, 3500 converter. 10.5:1 and up compression. 800-850 cfm. 383 requires 4000 converter. 800 to 850 cfm. 10.5 compression up.
| Operating Range: | 3500-6500 RPM |
| Duration Advertised: | 306° Intake / 306° Exhaust |
| Duration @ .050' Lift: | 262° Intake / 262° Exhaust |
| Valve Lift: | .555' Intake / .555' Exhaust |
| Lobe Separation Angle: | 110° |
Chrysler; Dodge; Plymouth; Challenger; Charger; Charger 500; Li' Red Express; Ram; Ramcharger; Cuda; MOPAR; 383; 400; 413; Wedge; 426 Wedge; 426 HEMI; 440; B; RB; Fury; Cuda; Road Runner; GTX; Duster; Coronet; Super Bee; Daytona; Valiant
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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Part TypeCamshaft
BrandCOMP CAMS
Package Height2.75
Package Width2.87
Package Length24.5
Weight9.5 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)262
Cam StyleMechanical flat tappet
Grind Number306S
Exh. Duration Advertised (Deg)306
Engine Make/SizeMopar 383-440
Intake Valve Lift With Factory Rocker Arm Ratio (I0.555
Int. Duration @ .050 In. (Deg)262
Basic Operating Rpm Range3,500-6,500
Intake Valve Lash0.022 in (0.559 mm)
Intake Valve Lift0.555 in (14.097 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)306
Lobe Separation (Deg)110
Rpm Range3500-6500
Advertised Duration306 int./306 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.555
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.555 int./0.555 exh.
Camshaft Gear Attachment3-bolt
QuantitySold individually
Exhaust Valve Lash0.022 in (0.559 mm)
Exhaust Valve Lift0.555 in (14.097 mm)
Advertised Intake Duration306
Intake Duration At 050 Inch Lift262
Exhaust Duration At 050 Inch Lift262
Advertised Exhaust Duration306
Lifter TypeMechanical Flat Tappet
Part FitmentSemi Universal
Duration At 050 Inch Lift262 int./262 exh.
Valve Springs RequiredYes
Vendor Part Number23-249-4
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
