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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-10-203-4
Magnum 270H Hydraulic Flat Tappet Camshaft Lift: .480" /.480" Duration: 270°/270° RPM Range: 1800-5800
$30995
Ships on Sep 15, 2026
Lowest Price GuaranteeAmerican Motors 290-401ci 1966-1991
- Magnum 270H Hydraulic Flat Tappet Camshaft
Lift: .480''/.480"
Duration: 270°/270°
RPM Range: 1800-5800
Hydraulic-Best cam for 360-401-with stock converter. Work well with headers and aftermarket intake.Mild rough idle.
| Operating Range: | 1800-5800 RPM |
| Duration Advertised: | 270° Intake / 270° Exhaust |
| Duration @ .050' Lift: | 224° Intake / 224° Exhaust |
| Valve Lift w/1.6 Rockers: | .480' Intake / .480' Exhaust |
| Lobe Separation Angle: | 110° |
AMC; Jeep; 4.0; 290; XJ; Cherokee; Wagoneer; Comanche; Grand Wagoneer; Wrangler; JK; Rambler; Eagle; ZJ; Chrysler; AM General; American Motors; 327; 390; 304; 327; 343; 360; 5.9; Rebel; Nash; AMX; Javelin
Best cam for 360-401 with stock converter. Works well with headers and aftermarket intake. Mild 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
BrandCOMP CAMS
Package Height2.6
Package Width3.0
Package Length24.4
Weight10.5 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)224
Cam StyleHydraulic flat tappet
Grind NumberA 270H-10
Exh. Duration Advertised (Deg)270
Engine Make/SizeAMC 290-401
Intake Valve Lift With Factory Rocker Arm Ratio (I0.48
Int. Duration @ .050 In. (Deg)224
Basic Operating Rpm Range1,800-5,800
Intake Valve Lift0.48 in (12.192 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)270
Lobe Separation (Deg)110
Rpm Range1800-5800
Advertised Duration270 int./270 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.48
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.480 int./0.480 exh.
QuantitySold individually
Exhaust Valve Lift0.48 in (12.192 mm)
Advertised Intake Duration270
Intake Duration At 050 Inch Lift224
Exhaust Duration At 050 Inch Lift224
Advertised Exhaust Duration270
Lifter TypeHydraulic Flat Tappet
Duration At 050 Inch Lift224 int./224 exh.
Valve Springs RequiredYes
Vendor Part Number10-203-4
Package Qty1
Package TypeEA
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