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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-23-712-9
Comp Cams Xtreme Energy Hydraulic Roller Camshafts
$62295
Ships on 09/08/2026
Lowest Price GuaranteeChrysler 383-440 C.I. 8 CYL. 1959-1980
- Xtreme Energy XR286HR-10 Retro-Fit Hydraulic Roller Camshaft
Lift .544"/.541"
Duration 286/294
Lobe Separation Angle: 110°
RPM Range: 2500-6200
Hydraulic Roller-3.91+ gear, 9.5:1 + compression, 2800+ stall, needs header, rough idle.
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
3.91+ gear, 9.5:1+ compression, 2800+ stall, needs headers, 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 Height2.9
Package Width3.0
Package Length24.3
Weight9.9 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)242
Cam StyleHydraulic roller tappet
Grind NumberXR286HR-10
Exh. Duration Advertised (Deg)294
Engine Make/SizeMopar 383-440
Intake Valve Lift With Factory Rocker Arm Ratio (I0.544
Int. Duration @ .050 In. (Deg)236
Basic Operating Rpm Range2,500-6,200
Intake Valve Lift0.544 in (13.818 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)286
Lobe Separation (Deg)110
Rpm Range2500-6200
Advertised Duration286 int./294 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.541
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.544 int./0.541 exh.
Camshaft Gear Attachment3-bolt
QuantitySold individually
Exhaust Valve Lift0.541 in (13.741 mm)
Advertised Intake Duration286
Intake Duration At 050 Inch Lift236
Exhaust Duration At 050 Inch Lift242
Advertised Exhaust Duration294
Lifter TypeHydraulic Roller Retrofit
Part FitmentSemi Universal
Duration At 050 Inch Lift236 int./242 exh.
Valve Springs RequiredYes
Vendor Part Number23-712-9
Package Qty1
Package TypeEA
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