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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-33-247-4
Comp Cams Magnum Mechanical Flat Tappet Camshafts
$30995
Ships on 09/09/2026
Lowest Price GuaranteeFord 352-428 c.i. 8 CYL. 1963-1976
- Magnum 306S Mechanical Flat Tappet Camshaft
Lift: .640"/.640"
Duration: 306°/306°
Lobe Separation Angle: 110°
RPM Range: 3000-7000
Excellent for Pro Street cars. 3500+ stall or 4 speed 11.5:1 compression, low gears. Radical idle.
| Operating Range: | 3000-7000 RPM |
| Duration Advertised: | 306° Intake / 306° Exhaust |
| Duration @ .050' Lift: | 260° Intake / 260° Exhaust |
| Valve Lift: | .640' Intake / .640' Exhaust |
| Lobe Separation Angle: | 110° |
Ford, FE, 352, 428, Super Cobra Jet, SCJ, Cobra Jet, Mustang, Mach 1, Shelby, 332, 361, 390, 406, 410, 427, 428, Truck, F100, F150, Ford Truck
Excellent for Pro Street cars. 3500+ stall or 4 speed 11.5:1 compression, low gears. Radical 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.
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Part TypeCamshaft
BrandCOMP CAMS
Package Height2.6
Package Width2.9
Package Length24.3
Weight10.4 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)260
Cam StyleMechanical flat tappet
Grind NumberFB 306S-10
Exh. Duration Advertised (Deg)306
Engine Make/SizeFord 352-428
Intake Valve Lift With Factory Rocker Arm Ratio (I0.64
Int. Duration @ .050 In. (Deg)260
Basic Operating Rpm Range3,000-7,000
Intake Valve Lash0.022 in (0.559 mm)
Intake Valve Lift0.64 in (16.256 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)306
Lobe Separation (Deg)110
Rpm Range3000-7000
Advertised Duration306 int./306 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.64
UsageStreet/Strip
Valve Lift With Factory Rocker Arm Ratio0.640 int./0.640 exh.
QuantitySold individually
Exhaust Valve Lash0.022 in (0.559 mm)
Exhaust Valve Lift0.64 in (16.256 mm)
Advertised Intake Duration306
Intake Duration At 050 Inch Lift260
Exhaust Duration At 050 Inch Lift260
Advertised Exhaust Duration306
Lifter TypeMechanical Flat Tappet
Duration At 050 Inch Lift260 int./260 exh.
Valve Springs RequiredYes
Vendor Part Number33-247-4
Package Qty1
Package TypeEA
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