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COMP Cams 12-246-20 - Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts



COMP Cams 12-246-20 - Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts

Part Number: 249-12-246-20

XTREME ENERGY 274H-10 Hydraulic Flat Tappet Camshaft Nitrided
Lift .490"/.490"
Duration 274°/286°
Lobe Angle 110°
$285.80

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COMP Cams 12-246-20 - Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts Details

Chevy 262-400ci Small Block 1955-98

HYDRAULIC − Very strong mid-range torque and throttle response, 2200+ stall.

Specifications:

Exhaust Valve Lift (in.)
0.49
Intake Valve Lift (in.)
0.490
RPM Range
1800-6000
Int. Duration @ .050 in. (Deg)
230
Exh. Duration @ .050 in. (Deg)
236
Int. Duration Advertised (Deg)
274
Exh. Duration Advertised (Deg)
286
Engine Make/Size
Chevy Small Block (262-400)
Lifter Type
Hydraulic Flat Tappet
Usage
Street/Strip
Advertised Duration
274 int./286 exh.
Advertised Exhaust Duration
286
Advertised Intake Duration
274
Basic Operating RPM Range
1,800-6,000
Cam Style
Hydraulic flat tappet
Computer-Controlled Compatible
No
Duration at 050 inch Lift
230 int./236 exh.
Exhaust Duration at 050 inch Lift
236
Exhaust Valve Lift with Factory Rocker Arm Ratio (
0.49
Grind Number
XE274H
Intake Duration at 050 inch Lift
230
Intake Valve Lift with Factory Rocker Arm Ratio (i
0.49
Quantity
Sold individually
Valve Lift with Factory Rocker Arm Ratio
0.490 int./0.490 exh.
Valve Springs Required
Yes
Lobe Separation (Deg)
110
Manufacturer's Part Number:
12-246-20

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.

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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    • EngineType: V8
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    • Liter: 5.7
    • EngineType: V8
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    • EngineType: V8
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    • CUI: 350
    • EngineType: V8

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    • Liter: 5.7
    • EngineType: V8
    • SubModel: SILVERADO

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    • Liter: 5.0
    • EngineType: V8
    • SubModel: SILVERADO

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    • Liter: 6.6
    • SubModel: MALIBU
    • EngineType: V8

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    • SubModel: BASE
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    • EngineType: V8

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    • EngineType: V8
    • SubModel: BASE

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    • Liter: 5.7
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    • EngineType: V8

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    • Liter: 5.7
    • SubModel: FORMULA
    • CUI: 350
    • EngineType: V8

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    • Liter: 5.0
    • EngineType: V8
    • SubModel: SCOTTSDALE

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    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

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    • EngineType: V8
    • SubModel: CHEYENNE

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    • Liter: 5.7
    • SubModel: SIERRA CLASSIC
    • CUI: 350
    • EngineType: V8

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    • SubModel: BASE

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    • Liter: 5.0
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    • CUI: 307
    • EngineType: V8

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    • EngineType: V8

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    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8

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    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

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    • Liter: 5.3
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    • EngineType: V8

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    • EngineType: ALL
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    • Liter: 5.0
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    • CUI: 305
    • EngineType: V8

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    • Liter: 5.7
    • EngineType: V8
    • SubModel: SILVERADO

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    • Liter: 5.7
    • EngineType: V8
    • SubModel: SCOTTSDALE

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    • Liter: 5.7
    • EngineType: V8
    • SubModel: HIGH SIERRA

    1981-1983 GMC C2500 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SIERRA CLASSIC

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    • Liter: 5.7
    • EngineType: V8
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    • EngineType: V8
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    • EngineType: V8
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    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

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    • Liter: 5.4
    • EngineType: V8
    • SubModel: BASE

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    • Liter: 5.0
    • EngineType: V8
    • SubModel: SPORTVAN

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    • Liter: 5.0
    • EngineType: V8
    • SubModel: SILVERADO

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    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

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    • Liter: 5.0
    • EngineType: V8
    • SubModel: CUSTOM

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    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE
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