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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-21-246-4
Comp Cams Magnum Mechanical Flat Tappet Camshafts
$28895
Ships on 09/10/2026
Lowest Price GuaranteeChrysler 383-440 C.I. 8 CYL. 1959-1980
- Magnum 270S Mechanical Flat Tappet Camshaft
(Single Bolt)
Lift: .468"/.468"
Duration: 270°/270°
Lobe Separation Angle: 110°
RPM Range: 2000-5500
Good with stock converter & compression. Near smooth idle in 440. Works good with 650-750 CFM carb. Excellent torque.
| Operating Range: | 2000-5500 RPM |
| Duration Advertised: | 270° Intake / 270° Exhaust |
| Duration @ .050' Lift: | 224° Intake / 224° Exhaust |
| Valve Lift: | .468' Intake / .468' Exhaust |
| Lobe Separation Angle: | 110° |
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
Good with stock converter. Near smooth idle in 440. Works good with 650-750 CFM carb. Excellent torque.
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 Width2.9
Package Length24.2
Weight9.7 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)224
Cam StyleMechanical flat tappet
Grind NumberCRB 270S-10
Exh. Duration Advertised (Deg)270
Engine Make/SizeMopar 383-440
Intake Valve Lift With Factory Rocker Arm Ratio (I0.468
Int. Duration @ .050 In. (Deg)224
Basic Operating Rpm Range2,000-5,500
Intake Valve Lash0.022 in (0.559 mm)
Intake Valve Lift0.468 in (11.887 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)270
Lobe Separation (Deg)110
Rpm Range2000-5500
Advertised Duration270 int./270 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.468
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.468 int./0.468 exh.
Camshaft Gear Attachment1-bolt
QuantitySold individually
Exhaust Valve Lash0.022 in (0.559 mm)
Exhaust Valve Lift0.468 in (11.887 mm)
Advertised Intake Duration270
Intake Duration At 050 Inch Lift224
Exhaust Duration At 050 Inch Lift224
Advertised Exhaust Duration270
Lifter TypeMechanical Flat Tappet
Duration At 050 Inch Lift224 int./224 exh.
Valve Springs RequiredYes
Vendor Part Number21-246-4
Package Qty1
Package TypeEA
No Questions
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