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Vehicle Info NeededCOMP CAMSPART NUMBER: 249-K08-444-8
Comp Cams 'Xtreme Energy' Hydraulic Roller Camshafts
$1,15895
Ships on 09/10/2026
Lowest Price GuaranteeChevy 305-350ci Small Block 1987-98
For engines originally equipped with a hydraulic roller camshaft, except LT1 and LT4.
For engines originally equipped with a hydraulic roller camshaft, except LT1 and LT4.
- Xtreme Energy XR300HR Hydraulic Roller Camshaft Complete Kit (CARBURETED)
- Produces Better Throttle Response
- Produces Top Engine Horsepower
- Delivers Increased Engine Vacuum
- 1 Year Limited Warranty
265, 283, 307, 302, 305, 327, 350, 383, 400, 427, L46, L48, L65, LM1, LT-1, L82, L81, LS9, L83, L98, L05, LG3, LG4, LT1, LT4, Camaro, Corvette, Chevelle, Stingray, Silverado, C10, Firebird, Chevrolet, Chevy, Small Block Chevy, Caprice, Malibu, Impala, Nova, 355, GEN1, Monte Carlo, S10
Pro Street, bracket racing, 10:1+ compression, 3500+ stall, good intake, headers.
Lift: .562"/.580"
Duration: 300°/306°
Lobe Separation Angle: 110°
RPM Range: 3200-6200
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 Kit
BrandCOMP CAMS
Package Height5.2
Package Width10.6
Package Length25.4
Weight25.2 PG
Part CategoryPerformance Parts
Exh. Duration @ .050 In. (Deg)254
Cam StyleHydraulic roller tappet
Grind NumberXR300HR
Exh. Duration Advertised (Deg)306
Locks IncludedYes
Engine Make/SizeChevy Small Block (262-400)
Retainers IncludedYes
Intake Valve Lift With Factory Rocker Arm Ratio (I0.562
Int. Duration @ .050 In. (Deg)248
Assembly Lubricant IncludedNo
Basic Operating Rpm Range3,200-6,200
Pushrods IncludedNo
Gaskets IncludedNo
Rocker Arms IncludedNo
Intake Valve Lift0.562 in (14.275 mm)
Computer-Controlled CompatibleNo
Int. Duration Advertised (Deg)300
Lobe Separation (Deg)110
Rpm Range3200-6200
Lifter StyleHydraulic roller
Advertised Duration300 int./306 exh.
Exhaust Valve Lift With Factory Rocker Arm Ratio (0.58
Valve Springs IncludedYes
UsageStreet/Performance
Valve Lift With Factory Rocker Arm Ratio0.562 int./0.580 exh.
QuantitySold as a kit
Valve Stem Seals IncludedYes
Exhaust Valve Lift0.58 in (14.732 mm)
Advertised Intake Duration300
Outside Diameter Of Outer Spring1.43 in (36.3 mm)
Intake Duration At 050 Inch Lift248
Exhaust Duration At 050 Inch Lift254
Timing Chain StyleDouble roller
Timing Chain And Gears IncludedYes
Advertised Exhaust Duration306
Lifter TypeHydraulic Roller
Part FitmentSemi Universal
Duration At 050 Inch Lift248 int./254 exh.
Valve Springs RequiredNo
Lifters IncludedYes
Vendor Part NumberK08-444-8
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
