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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-07-305-8
Comp Cams Xtreme Energy Hydraulic Roller Camshafts
$57795
Ships on 09/09/2026
Lowest Price GuaranteeChevy 350ci LT1 & LT4 1993-97
- Xtreme Energy 276HR-14 Hydraulic Roller Camshaft Only
Lift: .510''/.510''
Duration: 276°/290°
Lobe Separation Angle: 114°
RPM Range: 1500-5500
For use with LT1 modified computer.
| Operating Range: | 1500-5500 RPM |
| Duration Advertised: | 276° Intake / 290° Exhaust |
| Duration @ .050' Lift: | 220° Intake / 230° Exhaust |
| Valve Lift w/1.5 Rockers: | .510' Intake / .510' Exhaust |
| Lobe Separation Angle: | 114° |
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
For use in LT1, with 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 Height2.8
Package Width2.9
Package Length24.5
Weight8.65 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)230
Cam StyleHydraulic roller tappet
Grind NumberLT1 276HR-14
Exh. Duration Advertised (Deg)290
Engine Make/SizeChevy LT1
Intake Valve Lift With Factory Rocker Arm Ratio (I0.51
Int. Duration @ .050 In. (Deg)220
Basic Operating Rpm Range1,500-5,500
Intake Valve Lift0.51 in (12.954 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)276
Lobe Separation (Deg)114
Rpm Range1500-5500
Advertised Duration276 int./290 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.51
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.510 int./0.510 exh.
QuantitySold individually
Exhaust Valve Lift0.51 in (12.954 mm)
Advertised Intake Duration276
Intake Duration At 050 Inch Lift220
Exhaust Duration At 050 Inch Lift230
Advertised Exhaust Duration290
Lifter TypeHydraulic Roller
Duration At 050 Inch Lift220 int./230 exh.
Valve Springs RequiredYes
Vendor Part Number07-305-8
Package Qty1
Package TypeEA
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