- Cams & Valvetrain
- Camshafts
- Comp Cams 'Xtreme Energy' Hydraulic Roller Camshafts
The Leading Edge of Valve Train Technology
Comp Cams Xtreme Energy series can be used in any street or street/strip application where both throttle response and top-end horsepower is desired. These camshafts are designed to take advantage of the latest improvements in valve train components and the newest developments in camshaft design. Their aggressive lobe design produces better throttle response and top end horsepower than other cams with the same duration @ .050'' lift, while delivering increased engine vacuum. We do not recommend the use of stock valve train components with these camshafts due to the aggressive lobe designs.
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Features:- Quicker opening lobe profiles deliver increased responsiveness & more area under the lift curve
- More vacuum allows an increase in duration for improved performance and assists power brakes
- Excellent performance in street carbureted applications
- Best performance with aftermarket intake manifolds, headers, lower gear ratios
Camshaft & Lifter Kits are indicated by a CL in their part number and include Camshaft, Lifters, Assembly Lube, Decals, and Instructions.
Complete Kits are indicated by a K in their part number and include Camshaft, Lifters, Timing Chain & Gears, Valve Springs, Retainers, Locks, Assembly Lube, Decals, and Instructions.
Small Kits are indicated by a SK in their part number and include Camshaft, Lifters, Timing Chain Set, Assembly Lube, Decals, and Instructions.
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PART TYPE
PART TYPE
BRAND
BRAND
Engine MakeSize
Part Category
Vendor Part Number
RPM Range
Intake Valve Lift
Exh Duration 050 in Deg
Int Duration 050 in Deg
Exhaust Valve Lift
Int Duration Advertised Deg
Exh Duration Advertised Deg
Usage
Lifter Type
Advertised Intake Duration
Lobe Separation Deg
Advertised Exhaust Duration
RATING
PRICE
AMC 290-401 c.i. 8 CYL. 1966-1991
Xtreme Energy XE264HR-10 Hydraulic Roller Camshaft
Lift: .513"/.513"
Duration: 264/270
Lobe Separation Angle: 110°
RPM Range: 1200-5200
Lift: .513"/.513"
Duration: 264/270
Lobe Separation Angle: 110°
RPM Range: 1200-5200
View Details
$551.95
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Xtreme Energy XE276HR-10 Hydraulic Roller Camshaft
Lift: .513"/.513"
Duration: 276/282
Lobe Separation Angle: 110°
RPM Range: 1800-5800
Lift: .513"/.513"
Duration: 276/282
Lobe Separation Angle: 110°
RPM Range: 1800-5800
View Details
$551.95
Estimated to ship direct from manufacturer on 04/24/25, pending manufacturer availability.
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Xtreme Energy XE291HR-10 Hydraulic Roller Camshaft
Lift: .516"/.534"
Duration: 291/297
Lobe Separation Angle: 110°
RPM Range: 2100-6100
Lift: .516"/.534"
Duration: 291/297
Lobe Separation Angle: 110°
RPM Range: 2100-6100
View Details
$551.95
Estimated to ship direct from manufacturer on 04/24/25, pending manufacturer availability.
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Cadillac 425, 472, 500 Cyl. 1963-1979
Xtreme Energy XE270HR Hydraulic Roller Camshaft
Lift: .555"/.555"
Duration: 270/276
Lobe Separation Angle: 110°
RPM Range: 1200-4800
Lift: .555"/.555"
Duration: 270/276
Lobe Separation Angle: 110°
RPM Range: 1200-4800
View Details
$824.95
Estimated to ship direct from manufacturer on 04/24/25, pending manufacturer availability.
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Xtreme Energy XE285HR Hydraulic Roller Camshaft
Lift: .558"/.558"
Duration: 285/291
Lobe Separation Angle: 110°
RPM Range: 1800-5400
Lift: .558"/.558"
Duration: 285/291
Lobe Separation Angle: 110°
RPM Range: 1800-5400
View Details
$824.95
Estimated to ship direct from manufacturer on 04/24/25, pending manufacturer availability.
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Chevy 262-400ci Small Block 1955-98
For engines NOT originally equipped with a hydraulic roller camshaft.
Xtreme Energy XR252HR-10 Retro-Fit Hydraulic Roller Camshaft
Lift: .472"/.480"
Duration: 252/258
Lobe Separation Angle: 110°
RPM Range: 600-4600
Lift: .472"/.480"
Duration: 252/258
Lobe Separation Angle: 110°
RPM Range: 600-4600
View Details
$522.95
Estimated to ship direct from manufacturer on 03/25/25, pending manufacturer availability.
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Xtreme Energy XR258HR Retro-Fit Hydraulic Roller Camshaft
Lift: .480"/.487"
Duration: 258/264
Lobe Separation Angle: 110°
RPM Range: 1000-5000
Lift: .480"/.487"
Duration: 258/264
Lobe Separation Angle: 110°
RPM Range: 1000-5000
View Details
$522.95
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Xtreme Energy XR264HR Retro-Fit Hydraulic Roller Camshaft
Lift: .487"/.495"
Duration: 264/270
Lobe Separation Angle: 110°
RPM Range: 1200-5200
Lift: .487"/.495"
Duration: 264/270
Lobe Separation Angle: 110°
RPM Range: 1200-5200
View Details
$522.95
Ships Today
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Xtreme Energy XR270HR-10 Retro-Fit Hydraulic Roller Camshaft
Lift: .495''/.502''
Duration: 270°/276°
Lobe Separation Angle: 110°
RPM Range: 1600-5400
Lift: .495''/.502''
Duration: 270°/276°
Lobe Separation Angle: 110°
RPM Range: 1600-5400
View Details
$522.95
Ships Today
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Xtreme Energy XR676HR Retro-Fit Hydraulic Roller Camshaft
Lift: .502''/.510''
Duration: 276°/282°
Lobe Separation Angle: 110°
RPM Range: 1900-5600
Lift: .502''/.510''
Duration: 276°/282°
Lobe Separation Angle: 110°
RPM Range: 1900-5600
View Details
$522.95
Ships Today
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Xtreme Energy XR282HR Retro-Fit Hydraulic Roller Camshaft
Lift: .510''/.520''
Duration: 282°/288°
Lobe Separation Angle: 110°
RPM Range: 2200-5800
Lift: .510''/.520''
Duration: 282°/288°
Lobe Separation Angle: 110°
RPM Range: 2200-5800
View Details
$522.95
Ships Monday
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Xtreme Energy XR288HR Retro-Fit Hydraulic Roller Camshaft
Lift: .520''/.540''
Duration: 288°/294°
Lobe Separation Angle: 110°
RPM Range: 2500-6000
Lift: .520''/.540''
Duration: 288°/294°
Lobe Separation Angle: 110°
RPM Range: 2500-6000
View Details
$522.95
Ships Today
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Xtreme Energy XR294HR Retro-Fit Hydraulic Roller Camshaft
Lift: .540''/.562''
Duration: 294°/300°
Lobe Separation Angle: 110°
RPM Range: 2800-6100
Lift: .540''/.562''
Duration: 294°/300°
Lobe Separation Angle: 110°
RPM Range: 2800-6100
View Details
$522.95
Ships Today
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Xtreme Energy XR300HR Retro-Fit Hydraulic Roller Camshaft
Lift: .562"/.580"
Duration: 300/306
Lobe Separation Angle: 110°
RPM Range: 3200-6200
Lift: .562"/.580"
Duration: 300/306
Lobe Separation Angle: 110°
RPM Range: 3200-6200
View Details
$522.95
(2)
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Xtreme Energy Retro-Fit XR258HR Hydraulic Roller Camshaft & Lifter Kit
Lift: .480"/.487"
Duration: 258/264
Lobe Separation Angle: 110°
RPM Range: 1000-5000
Lift: .480"/.487"
Duration: 258/264
Lobe Separation Angle: 110°
RPM Range: 1000-5000
View Details
$1,097.95
Estimated to ship direct from manufacturer on 03/31/25, pending manufacturer availability.
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Xtreme Energy Retro-Fit XR264HR Hydraulic Roller Camshaft & Lifter Kit
Lift: .487"/.495"
Duration: 264/270
Lobe Separation Angle: 110°
RPM Range: 1200-5200
Lift: .487"/.495"
Duration: 264/270
Lobe Separation Angle: 110°
RPM Range: 1200-5200
View Details
$1,097.95
Ships Today
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Xtreme Energy XR270HR-10 Hydraulic Roller Camshaft & Lifter Kit
Lift: .495''/.502''
Duration: 270°/276°
Lobe Separation Angle: 110°
RPM Range: 1600-5400
Lift: .495''/.502''
Duration: 270°/276°
Lobe Separation Angle: 110°
RPM Range: 1600-5400
View Details
$1,095.95
(1)
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Xtreme Energy XR276HR Hydraulic Roller Camshaft & Lifter Kit
Lift: .502''/.510''
Duration: 276°/282°
Lobe Separation Angle: 110°
RPM Range: 1900-5600
Includes Lifters
Lift: .502''/.510''
Duration: 276°/282°
Lobe Separation Angle: 110°
RPM Range: 1900-5600
Includes Lifters
View Details
$1,097.95
Ships Today
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Xtreme Energy XR282HR Hydraulic Roller Camshaft & Lifter Kit
Lift: .510''/.520''
Duration: 282°/288°
Lobe Separation Angle: 110°
RPM Range: 2200-5800
Lift: .510''/.520''
Duration: 282°/288°
Lobe Separation Angle: 110°
RPM Range: 2200-5800
View Details
$1,097.95
(2)
Ships Today
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Xtreme Energy Retro-Fit XR288HR Hydraulic Roller Cam & Lifter Kit
Lift .520/.540
Duration 288/294Lobe Separation Angle: 110°
RPM Range 2500-6000
Lift .520/.540
Duration 288/294Lobe Separation Angle: 110°
RPM Range 2500-6000
View Details
$1,097.95
Ships Today
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Xtreme Energy XR294HR Hydraulic Roller Camshaft & Lifter Kit
Lift: .540''/.562''
Duration: 294°/300°
Lobe Separation Angle: 110°
RPM Range: 2800-6100
Includes Lifters
Lift: .540''/.562''
Duration: 294°/300°
Lobe Separation Angle: 110°
RPM Range: 2800-6100
Includes Lifters
View Details
$1,097.95
Ships Today
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COMP Cams Xtreme Energy Retro-Fit Hydraulic Roller Camshaft & Lifter Kit
Lift: .562"/.580"
Duration: 300/306
Lobe Separation Angle: 110°
RPM Range: 3200-6200
Lift: .562"/.580"
Duration: 300/306
Lobe Separation Angle: 110°
RPM Range: 3200-6200
View Details
$1,097.95
Estimated to ship direct from manufacturer on 04/24/25, pending manufacturer availability.
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Xtreme Energy XR294HR Hydraulic Roller Camshaft Complete Kit
Lift: .540''/.562''
Duration: 294°/300°
Lobe Separation Angle: 110°
RPM Range: 2800-6100
Lift: .540''/.562''
Duration: 294°/300°
Lobe Separation Angle: 110°
RPM Range: 2800-6100
View Details
$1,471.95
Estimated to ship direct from manufacturer on 04/24/25, pending manufacturer availability.
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Xtreme Energy XR252HR Retro-Fit Hydraulic Roller Camshaft Small Kit
Lift: .472"/.480"
Duration: 252/258
Lobe Separation Angle: 110°
RPM Range: 600-4600
Lift: .472"/.480"
Duration: 252/258
Lobe Separation Angle: 110°
RPM Range: 600-4600
View Details
$1,157.95
Estimated to ship direct from manufacturer on 03/25/25, pending manufacturer availability.
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Xtreme Energy XR258HR Retro-Fit Hydraulic Roller Camshaft Small Kit
Lift: .480"/.487"
Duration: 258/264
Lobe Separation Angle: 110°
RPM Range: 1000-5000
Lift: .480"/.487"
Duration: 258/264
Lobe Separation Angle: 110°
RPM Range: 1000-5000
View Details
$1,157.95
Estimated to ship direct from manufacturer on 04/24/25, pending manufacturer availability.
FREE Shipping
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Xtreme Energy XR264HR Retro-Fit Hydraulic Roller Camshaft Small Kit
Lift: .487"/.495"
Duration: 264/270
Lobe Separation Angle: 110°
RPM Range: 1200-5200
Lift: .487"/.495"
Duration: 264/270
Lobe Separation Angle: 110°
RPM Range: 1200-5200
View Details
$1,157.95
Estimated to ship direct from manufacturer on 04/24/25, pending manufacturer availability.
FREE Shipping
Lowest Price Guarantee
Xtreme Energy XR270HR Retro-Fit Hydraulic Roller Camshaft Small Kit
Lift: .495''/.502''
Duration: 270°/276°
Lobe Separation Angle: 110°
RPM Range: 1600-5400
Lift: .495''/.502''
Duration: 270°/276°
Lobe Separation Angle: 110°
RPM Range: 1600-5400
View Details
$1,157.95
Ships Monday
FREE Shipping
Lowest Price Guarantee
Xtreme Energy XR276HR Retro-Fit Hydraulic Roller Camshaft Small Kit
Lift: .502''/.510''
Duration: 276°/282°
Lobe Separation Angle: 110°
RPM Range: 1900-5600
Lift: .502''/.510''
Duration: 276°/282°
Lobe Separation Angle: 110°
RPM Range: 1900-5600
View Details
$1,157.95
Estimated to ship direct from manufacturer on 04/24/25, pending manufacturer availability.
FREE Shipping
Lowest Price Guarantee
Xtreme Energy™ XR282HR Retro-Fit Hydraulic Roller Camshaft Small Kit
Lift: .510''/.520''
Duration: 282°/288°
Lobe Separation Angle: 110°
RPM Range: 2200-5800
Lift: .510''/.520''
Duration: 282°/288°
Lobe Separation Angle: 110°
RPM Range: 2200-5800
View Details
$1,157.95
Estimated to ship direct from manufacturer on 04/24/25, pending manufacturer availability.
FREE Shipping
Lowest Price Guarantee
Xtreme Energy XR288HR Retro-Fit Hydraulic Roller Camshaft Small Kit
Lift: .520''/.540''
Duration: 288°/294°
Lobe Separation Angle: 110°
RPM Range: 2500-6000
Lift: .520''/.540''
Duration: 288°/294°
Lobe Separation Angle: 110°
RPM Range: 2500-6000
View Details
$1,157.95
Estimated to ship direct from manufacturer on 04/24/25, pending manufacturer availability.
FREE Shipping
Lowest Price Guarantee