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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-07-503-8
Comp Cams Xtreme Energy Hydraulic Roller Camshafts
$57795
4 left in stock
Ships Tomorrow
Lowest Price GuaranteeChevy 350ci LT1 & LT4 1993-97
- Xtreme Energy 276HR-12 Hydraulic Roller Camshaft
Lift: .503''/.510''
Duration: 276°/281°
Lobe Separation Angle: 112°
RPM Range: 1800-5800
Best cam for modified LT1 w/programmer or chip. Better exhaust & 2000+ torque converter recommended.
| Operating Range: | 1800-5800 RPM |
| Duration Advertised: | 276° Intake / 281° Exhaust |
| Duration @ .050': | 224° Intake / 230° Exhaust |
| Valve Lift: | .503' Intake / .510' Exhaust |
| Lobe Separation Angle: | 112° |
SBC; Chevrolet; Chevy Small Block; Small Block Chevrolet; 305; 350; LT1; LT4; Chevelle; Camaro; Swap; Corvette; Bel Air; Z28; Z2/8; Duntov; Nova; Monaro; Firebird; Trans-Am; Pontac; C10; C20; K10; Blazer; S10; Monza; Ventura; Monte Carlo; Malibu; El Camino; Caprice; Vortec; SS
Best cam for modified LT1, better exhaust and 2000+ converter. Requires custom tuning.
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 Height2.7
Package Width2.9
Package Length24.0
Weight8.95 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)230
Cam StyleHydraulic roller tappet
Grind NumberLT1 XR276HR-12
Exh. Duration Advertised (Deg)281
Engine Make/SizeChevy LT1
Intake Valve Lift With Factory Rocker Arm Ratio (I0.503
Int. Duration @ .050 In. (Deg)224
Basic Operating Rpm Range1,800-5,800
Intake Valve Lift0.503 in (12.776 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)276
Lobe Separation (Deg)112
Rpm Range1800-5800
Advertised Duration276 int./281 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.51
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.503 int./0.510 exh.
QuantitySold individually
Exhaust Valve Lift0.51 in (12.954 mm)
Advertised Intake Duration276
Intake Duration At 050 Inch Lift224
Exhaust Duration At 050 Inch Lift230
Advertised Exhaust Duration281
Lifter TypeHydraulic Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift224 int./230 exh.
Valve Springs RequiredYes
Vendor Part Number07-503-8
Package Qty1
Package TypeEA
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