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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-20-744-9
Comp Cams Xtreme Energy Hydraulic Roller Camshafts
$55895
Ships on 09/08/2026
Lowest Price GuaranteeChrysler 273-360
1992-02 Magnum Engines
1992-02 Magnum Engines
- Xtreme Energy XR258HR-12 Hydraulic Roller Camshaft
Lift: .480''/.480''
Duration: 258/264
Lobe Separation Angle: 112°
RPM Range: 700-4800
Will require computer modifications.
| Operating Range: | 700-4800 RPM |
| Duration Advertised: | 258° Intake / 264° Exhaust |
| Duration @ .050' Lift: | 206° Intake / 212° Exhaust |
| Valve Lift: | .480' Intake / .480' Exhaust |
| Lobe Separation Angle: | 112° |
Chrysler; Dodge; Plymouth; 273; 318; 340; 360; Magnum; LA; Barracuda; 5.2; 5.9; Challenger; Charger; Charger 500; Li' Red Express; Ram; Ramcharger; Cuda; MOPAR
Super strong torque cam for 318, idle to 4500 RPM.
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 Length24.4
Weight9.5 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)212
Cam StyleHydraulic roller tappet
Grind NumberCRS XR258R-12
Exh. Duration Advertised (Deg)264
Engine Make/SizeMopar V8
Intake Valve Lift With Factory Rocker Arm Ratio (I0.48
Int. Duration @ .050 In. (Deg)206
Basic Operating Rpm Range700-4,800
Intake Valve Lift0.48 in (12.192 mm)
Computer-Controlled CompatibleYes
Int. Duration Advertised (Deg)258
Lobe Separation (Deg)112
Rpm Range700-4800
Advertised Duration258 int./264 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.48
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.480 int./0.480 exh.
QuantitySold individually
Exhaust Valve Lift0.48 in (12.192 mm)
Advertised Intake Duration258
Intake Duration At 050 Inch Lift206
Exhaust Duration At 050 Inch Lift212
Advertised Exhaust Duration264
Lifter TypeHydraulic Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift206 int./212 exh.
Valve Springs RequiredYes
Vendor Part Number20-744-9
Package Qty1
Package TypeEA
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