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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-21-306-4
Magnum 270H Hydraulic Flat Tappet Camshaft Lift .470"/.470" Duration 270°/270° RPM Range 1800-5500
$30995
Ships on Sep 15, 2026
Lowest Price GuaranteeChrysler 383-440ci 1959-1980
- Magnum 270H Hydraulic Flat Tappet Camshaft
Lift .470"/.470"
Duration 270°/270°
RPM Range 1800-5500
Hydraulic-Great replacement for 440 with 700-800 CFM or Six Pack. Noticeable idle in 383. Slight idle in 440. Largest cam w/stock converter.
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
Great replacement for 440 with 700-800 CFM or six pack. Noticeable idle in 383. Slight idle in 440. Largest cam w/ stock converter.
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 Width3.0
Package Length24.2
Weight10.02 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)224
Cam StyleHydraulic flat tappet
Grind NumberCRB 270H-10
Exh. Duration Advertised (Deg)270
Engine Make/SizeMopar 383-440
Intake Valve Lift With Factory Rocker Arm Ratio (I0.47
Int. Duration @ .050 In. (Deg)224
Basic Operating Rpm Range1,800-5,500
Intake Valve Lift0.47 in (11.938 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)270
Lobe Separation (Deg)110
Rpm Range1800-5500
Advertised Duration270 int./270 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.47
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.470 int./0.470 exh.
Camshaft Gear Attachment1-bolt
QuantitySold individually
Exhaust Valve Lift0.47 in (11.938 mm)
Advertised Intake Duration270
Intake Duration At 050 Inch Lift224
Exhaust Duration At 050 Inch Lift224
Advertised Exhaust Duration270
Lifter TypeHydraulic Flat Tappet
Part FitmentSemi Universal
Duration At 050 Inch Lift224 int./224 exh.
Valve Springs RequiredYes
Vendor Part Number21-306-4
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
