- Cams & Valvetrain
- Camshafts
- Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts
The Leading Edge of Valve Train Technology
Comp Cams Xtreme Energy series are perfect for 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 and greatest in valvetrain technology . 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 springs with these camshafts due to the aggressive lobe designs.
Show More
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.
Unlock serious performance gains with Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts, engineered for drivers who want more power, better throttle response, and reliable street and strip performance. These cams are designed using modern lobe profiles that deliver strong torque across the RPM range, making them ideal for a wide variety of performance applications.
Whether you're running a mild street build or a weekend warrior, the Xtreme Energy series offers optimized valve timing to enhance airflow and combustion—resulting in improved horsepower, torque, and engine responsiveness. If you're searching for a Comp Cam Xtreme Energy that strikes the perfect balance between street manners and race-ready power, this series delivers.
The Comp Xtreme Energy Cam line is available in a range of durations and lift profiles, making it easy to match the perfect camshaft to your compression ratio, gearing, and intended use. These cams work great with aftermarket intakes, headers, and higher stall converters, offering a noticeable performance upgrade without sacrificing driveability.
Each Xtreme Energy Cam is manufactured with precision and durability in mind, ensuring long life and consistent performance under demanding conditions. Whether you're building a classic muscle car or upgrading a street machine, you'll feel the power gains from idle to redline.
Get more out of your engine with Comp Cams' proven camshaft technology. The Xtreme Energy Hydraulic Flat Tappet Camshaft series delivers the aggressive performance you want with the reliability you need.
AMC 290-401ci 1966-1991
COMP Cams Xtreme Energy 256H Hydraulic Flat Tappet Camshaft & Lifter Kit Lift: .477"/.484" Duration: 256°/268° RPM Range: 1200-5200
Lift: .477"/.484"
Duration: 256°/268°
RPM Range: 1200-5200
COMP Cams Xtreme Energy 256H Hydraulic Flat Tappet Camshaft Complete Kit Lift: .477"/.484" Duration: 256°/268° RPM Range: 1200-5200
Lift: .477"/.484"
Duration: 256°/268°
RPM Range: 1200-5200
COMP Cams Xtreme Energy 256H Hydraulic Flat Tappet Camshaft Only Lift: .477"/.484" Duration: 256°/268° RPM Range: 1200-5200
Lift: .477"/.484"
Duration: 256°/268°
RPM Range: 1200-5200
COMP Cams Xtreme Energy 256H Hydraulic Flat Tappet Camshaft Small Kit Lift: .477"/.484" Duration: 256°/268° RPM Range: 1200-5200
Lift: .477"/.484"
Duration: 256°/268°
RPM Range: 1200-5200
COMP Cams Xtreme Energy 262H Hydraulic Flat Tappet Camshaft & Lifter Kit Lift: .493"/.500" Duration: 262°/270° RPM Range: 1800-5800
Lift: .493"/.500"
Duration: 262°/270°
RPM Range: 1800-5800
COMP Cams Xtreme Energy 262H Hydraulic Flat Tappet Camshaft Complete Kit Lift: .493"/.500" Duration: 262°/270° RPM Range: 1800-5800
Lift: .493"/.500"
Duration: 262°/270°
RPM Range: 1800-5800
COMP Cams Xtreme Energy 262H Hydraulic Flat Tappet Camshaft Only Lift: .493"/.500" Duration: 262°/270° RPM Range: 1800-5800
Lift: .493"/.500"
Duration: 262°/270°
RPM Range: 1800-5800
COMP Cams Xtreme Energy 274H Hydraulic Flat Tappet Camshaft & Lifter Kit Lift: .520"/.523" Duration: 274°/286° RPM Range: 2000-6000
Lift: .520"/.523"
Duration: 274°/286°
RPM Range: 2000-6000
COMP Cams Xtreme Energy 274H Hydraulic Flat Tappet Camshaft Only Lift: .520"/.523" Duration: 274°/286° RPM Range: 2000-6000
Lift: .520"/.523"
Duration: 274°/286°
RPM Range: 2000-6000
COMP Cams Xtreme Energy 274H Hydraulic Flat Tappet Camshaft Small Kit Lift: .520"/.523" Duration: 274°/286° RPM Range: 2000-6000
Lift: .520"/.523"
Duration: 274°/286°
RPM Range: 2000-6000
Buick 400, 430, 455 c.i. 8 CYL. 1967-1976
COMP Cams Xtreme Energy XE274H Hydraulic Flat Tappet Camshaft Only Lift .506"/.506" Duration 274/286 RPM Range 2000-6000
Lift .506"/.506"
Duration 274/286
RPM Range 2000-6000
Chevrolet 4.3 Liter 262 c.i. 90° 6 CYL. 1980-1997
COMP Cams Xtreme Energy 240H Hydraulic Flat Tappet Camshaft & Lifter Kit Lift .390"/.390" Duration 240/248 RPM Range 500-4500
Duration 240/248
RPM Range 500-4500
COMP Cams Xtreme Energy 240H Hydraulic Flat Tappet Camshaft Complete Kit Lift .390"/.390" Duration 240/248 RPM Range 500-4500
Duration 240/248
RPM Range 500-4500
COMP Cams Xtreme Energy 240H Hydraulic Flat Tappet Camshaft Only Lift .390"/.390" Duration 240/248 RPM Range 500-4500
Lift .390"/.390"
Duration 240/248
RPM Range 500-4500
COMP Cams Xtreme Energy 240H Hydraulic Flat Tappet Camshaft Small Kit Lift: .390"/.390" Duration: 240/248 RPM Range: 500-4500
Lift: .390"/.390"
Duration: 240/248
RPM Range: 500-4500
COMP Cams Xtreme Energy 252H Hydraulic Flat Tappet Camshaft & Lifter Kit Lift .425"/.425" Duration 252/252 RPM Range 800-4800
Lift .425"/.425"
Duration 252/252
RPM Range 800-4800
COMP Cams Xtreme Energy 252H Hydraulic Flat Tappet Camshaft Complete Kit Lift: .425"/.425" Duration: 252/252 RPM Range: 800-4800
Lift: .425"/.425"
Duration: 252/252
RPM Range: 800-4800
COMP Cams Xtreme Energy 252H Hydraulic Flat Tappet Camshaft Only Lift .425"/.425" Duration 252/252 RPM Range 800-4800
Lift .425"/.425"
Duration 252/252
RPM Range 800-4800
COMP Cams Xtreme Energy 252H Hydraulic Flat Tappet Camshaft Small Kit Lift: .425"/.425" Duration: 252/252 RPM Range: 800-4800
Lift: .425"/.425"
Duration: 252/252
RPM Range: 800-4800
COMP Cams Xtreme Energy 260H Hydraulic Flat Tappet Camshaft & Lifter Kit Lift .444"/.444" Duration 260/260 RPM Range 1000-5000
Lift .444"/.444"
Duration 260/260
RPM Range 1000-5000
COMP Cams Xtreme Energy 260H Hydraulic Flat Tappet Camshaft Complete Kit Lift .444"/.444" Duration 260/260 RPM Range 1000-5000
Duration 260/260
RPM Range 1000-5000
COMP Cams Xtreme Energy 260H Hydraulic Flat Tappet Camshaft Only Lift .444"/.444" Duration 260/260 RPM Range 1000-5000
Lift .444"/.444"
Duration 260/260
RPM Range 1000-5000
COMP Cams Xtreme Energy 260H Hydraulic Flat Tappet Camshaft Small Kit Lift: .444"/.444" Duration: 260/260 RPM Range: 1000-5000
Lift: .444"/.444"
Duration: 260/260
RPM Range: 1000-5000
COMP Cams Xtreme Energy 268H Hydraulic Flat Tappet Camshaft & Lifter Kit Lift .454"/.454" Duration 268/268 RPM Range 1500-5500
Duration 268/268
RPM Range 1500-5500
COMP Cams Xtreme Energy 268H Hydraulic Flat Tappet Camshaft Complete Kit Lift .454"/.454" Duration 268/268 RPM Range 1500-5500
Duration 268/268
RPM Range 1500-5500
COMP Cams Xtreme Energy 268H Hydraulic Flat Tappet Camshaft Only Lift .454"/.454" Duration 268/268 RPM Range 1500-5500
Lift .454"/.454"
Duration 268/268
RPM Range 1500-5500
Chevy 262-400ci Small Block 1955-98
COMP Cams COMP Cams Xtreme Energy 4/7 Swap Hydraulic Flat Camshaft Lift .519"/.523" Duration 294/306 RPM Range 2800-7000
Lift .519"/.523"
Duration 294/306
RPM Range 2800-7000
COMP Cams XTREME ENERGY 274H-10 Hydraulic Flat Tappet Camshaft Nitrided Lift .490"/.490" Duration 274°/286° Lobe Angle 110°
Lift .490"/.490"
Duration 274°/286°
Lobe Angle 110°
COMP Cams XTREME ENERGY 284H-10 Hydraulic Flat Tappet Camshaft Nitrided Lift .507"/.510" Duration 284°/296° RPM Range 2300-6500
Lift .507"/.510"
Duration 284°/296°
RPM Range 2300-6500
COMP Cams XTREME ENERGY CS 294H-10 Hydraulic Flat Tappet Camshaft Nitrided Lift .519"/.523" Duration 294°/306° RPM Range 2800 to 7000
Lift .519"/.523"
Duration 294°/306°
RPM Range 2800 to 7000