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COMP Cams 11-423-8 - Comp Cams 'Xtreme Energy' Hydraulic Roller Camshafts

COMP Cams 11-423-8 - Comp Cams 'Xtreme Energy' Hydraulic Roller Camshafts

COMP Cams#249-11-423-8

Xtreme Energy Retro-Fit XR276HR-10 Hydraulic Roller Camshaft
Lift: .510"/.510"
Duration: 276/282
Lobe Separation Angle: 110°
RPM Range: 1900-5600

COMP Cams 11-423-8 - Comp Cams 'Xtreme Energy' Hydraulic Roller Camshafts Details

Chevrolet Big Block 396-454 c.i. 8 CYL. 1965-1996

Hydraulic Roller-Great for Street Machines, needs intake, headers, stall, and gears.

COMP Cams 11-423-8 - 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.

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.

COMP Cams 249-11-423-8

Exhaust Valve Lift (in.)
0.51
Intake Valve Lift (in.)
0.510
RPM Range
1000-7000
Int. Duration @ .050 in. (Deg)
224
Exh. Duration @ .050 in. (Deg)
230
Int. Duration Advertised (Deg)
276
Exh. Duration Advertised (Deg)
282
Engine Make/Size
Chevy Big Block (396-454)
Lifter Type
Hydraulic Roller
Usage
Street/Performance
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