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Comp Cams Xtreme Energy Camshafts,P8 XR276HR-10
Comp Cams Xtreme Energy Camshafts,P8 XR276HR-10
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Xtreme Energy Camshafts
Camshaft, Hydraulic Roller Tappet, Advertised Duration 276/282, Lift .502/.510, Pontiac, V8, Each.
COMP Cams Xtreme Energy camshafts employ the latest cam technology to provide maximum performance. Whether your use is off-roading, towing, or street performance, there's an Xtreme Energy cam available for you. By using an aggressive lobe profile, these cams provide better throttle response and more top-end horsepower than equivalent cams from other manufacturers-while delivering increased engine vacuum. Hundreds of models are available for fitment on vehicles from 1955 to the present. Select the cam designed for your application.
Specifications
Part Type:Camshafts
Product Line:COMP Cams Xtreme Energy Camshafts
Cam Style:Hydraulic roller tappet
Basic Operating RPM Range:1,800-5,600
Intake Duration at 050 inch Lift:224
Exhaust Duration at 050 inch Lift:230
Duration at 050 inch Lift:224 int./230 exh.
Advertised Intake Duration:276
Advertised Exhaust Duration:282
Advertised Duration:276 int./282 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:0.502 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:0.510 in.
Valve Lift with Factory Rocker Arm Ratio:0.502 int./0.510 exh.
Lobe Separation (degrees):110
Computer-Controlled Compatible:No
Valve Springs Required:Yes
Quantity:Sold individually
Vehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1958 - 1979 | Pontiac | Bonneville | Base |
| 1976 - 1979 | Pontiac | Bonneville | Brougham |
| 1959 - 1962 | Pontiac | Bonneville | Custom |
| 1959 - 1979 | Pontiac | Bonneville | Safari |
| 1964 - 1967 | Pontiac | Catalina | 2+2 |
| 1955 - 1979 | Pontiac | Catalina | Base |
| 1971 - 1972 | Pontiac | Catalina | Brougham |
| 1959 - 1979 | Pontiac | Catalina | Safari |
| 1962 - 1970 | Pontiac | Catalina | Ventura |
| 1955 - 1958 | Pontiac | Chieftain | Base, Safari |
| 1957 | Pontiac | Chieftain | Custom Safari Transcontinental, Custom Safari |
| 1967 - 1970 | Pontiac | Executive | Base, Safari |
| 1967 | Pontiac | Firebird | 326 |
| 1968 - 1969 | Pontiac | Firebird | 350 |
| 1969 | Pontiac | Firebird | 350 HO |
| 1967 - 1979 | Pontiac | Firebird | Base |
| 1970 - 1979 | Pontiac | Firebird | Esprit, Formula |
| 1967 - 1968 | Pontiac | Firebird | HO |
| 1967 - 1969 | Pontiac | Firebird | Sprint, 400 |
| 1969 - 1979 | Pontiac | Firebird | Trans Am |
| 1973 - 1979 | Pontiac | Grand Am | Base |
| 1976 | Pontiac | Grand LeMans | BR |
| 1976 - 1979 | Pontiac | Grand LeMans | LE |
| 1975 - 1979 | Pontiac | Grand LeMans | Safari, Base |
| 1962 - 1979 | Pontiac | Grand Prix | Base |
| 1975 - 1979 | Pontiac | Grand Prix | SJ, LJ |
| 1971 - 1977 | Pontiac | Grand Safari | Base |
| 1971 - 1974 | Pontiac | Grandville | Base |
| 1975 | Pontiac | Grandville | Brougham |
| 1964 - 1973 | Pontiac | GTO | Base |
| 1970 - 1971 | Pontiac | GTO | The Judge |
| 1963 - 1979 | Pontiac | LeMans | Base |
| 1972 - 1974 | Pontiac | LeMans | Luxury |
| 1969 - 1979 | Pontiac | LeMans | Safari |
| 1974 | Pontiac | LeMans | Safari Luxury |
| 1970 - 1977 | Pontiac | LeMans | Sport |
| 1976 - 1977 | Pontiac | LeMans | Sport Coupe |
| 1971 | Pontiac | LeMans | T37 |
| 1955 - 1966 | Pontiac | Star Chief | Base |
| 1955 - 1957 | Pontiac | Star Chief | Custom |
| 1958 | Pontiac | Star Chief | Custom Safari, Super Deluxe |
| 1966 | Pontiac | Star Chief | Executive |
| 1958 | Pontiac | Super Chief | Base |
| 1961 - 1970 | Pontiac | Tempest | Base |
| 1961 - 1969 | Pontiac | Tempest | Custom, Safari |
| 1970 | Pontiac | Tempest | GT |
| 1961 | Pontiac | Tempest | LeMans |
| 1960 - 1977 | Pontiac | Ventura | Base |
| 1974 | Pontiac | Ventura | Custom, GTO |
| 1977 | Pontiac | Ventura | SJ |

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