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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-23-705-9
Drag Race Mechanical Roller Camshaft Lift .660"/.660" Duration 283/291 RPM Range 3500-6300
$62295
Ships on 10/22/2026
Lowest Price GuaranteeChrysler 383-440 C.I. 8 CYL. 1959-1980
- Drag Race Mechanical Roller Camshaft
Lift .660"/.660"
Duration 283/291
RPM Range 3500-6300
Mechanical Roller-Super strong low end torque. Best with 10.5:1 comp and single plane intake. 3500 stall in 440 3800 in 383.
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
Super strong low end torque. Best with 10.5:1 compression and single plane intake. 3500+ stall in 440, 3800 in 383.
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 Height2.9
Package Width3.0
Package Length24.5
Weight9.35 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)263
Cam StyleMechanical roller tappet
Grind Number283R-8 R
Exh. Duration Advertised (Deg)291
Engine Make/SizeChevy Big Block (396-454)
Intake Valve Lift With Factory Rocker Arm Ratio (I0.66
Int. Duration @ .050 In. (Deg)252
Basic Operating Rpm Range3,500-6,300
Intake Valve Lash0.026 in (0.66 mm)
Intake Valve Lift0.66 in (16.764 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)283
Lobe Separation (Deg)108
Rpm Range3500-6300
Advertised Duration283 int./291 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.66
UsageStrip
Valve Lift With Factory Rocker Arm Ratio0.660 int./0.660 exh.
Camshaft Gear Attachment3-bolt
QuantitySold individually
Exhaust Valve Lash0.028 in (0.711 mm)
Exhaust Valve Lift0.66 in (16.764 mm)
Advertised Intake Duration283
Intake Duration At 050 Inch Lift252
Exhaust Duration At 050 Inch Lift263
Advertised Exhaust Duration291
Lifter TypeMechanical Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift252 int./263 exh.
Valve Springs RequiredYes
Vendor Part Number23-705-9
Package Qty1
Package TypeEA
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