Comp Cams Xtreme Energy XR258HR-12, Chevy Small Block
Comp Cams Xtreme Energy XR258HR-12, Chevy Small Block

Comp Cams Xtreme Energy XR258HR-12, Chevy Small Block

$612.17
$612.17
Sold out

Xtreme Energy XR258HR-12, Chevy Small Block

Hydraulic Roller-For throttle body 305 or 350, very good economy and power.

  • Grind Number: XR258HR
  • Lifter Type: Hydraulic Roller Lifter
  • Engine Family: Chevrolet 262-400 c.i. 8 cyl. 1955-1998
  • Cam Family: XTREME EnergyT Computer Controlled 1987-1998 305-350 Originally Equipped With Hydraulic Roller Camshaft, Except LT1 and LT4.
Specifications     Intake Exhaust
RPM Range: Valve Lash:
Valve Timing: Duration:
Lobe Separation:   Duration @ .050" Lift:
Intake Centerline: Valve Lift:
    Lobe Lift:
Valve Timing @ 0.006  Lift:


Vehicle Fitments:

Year Make Model Submodel
1987 - 1991 Avanti II Base
1991 - 1996 Buick Commercial Chassis Base
1991 - 1993 Buick Roadmaster Estate Wagon
1992 - 1993 Buick Roadmaster Limited, Base
1990 - 1992 Cadillac Brougham Base, d'Elegance
1992 - 1996 Cadillac Commercial Chassis Base, Brougham
1993 Cadillac Fleetwood Base, Brougham
1994 Chevrolet Blazer Base, Silverado Sport
1992 - 1993 Chevrolet Blazer Cheyenne
1987 Chevrolet Blazer Custom Deluxe
1991 - 1994 Chevrolet Blazer Nevada
1988 - 1991 Chevrolet Blazer Scottsdale
1987 - 1994 Chevrolet Blazer Silverado
1990 - 1993 Chevrolet C1500 454 SS
1989 - 1995 Chevrolet C1500 Base
1988 - 1995 Chevrolet C1500 Cheyenne, Silverado
1988 - 1992 Chevrolet C1500 Scottsdale
1990 - 1995 Chevrolet C1500 WT
1992 - 1995 Chevrolet C1500 Suburban Base
1995 Chevrolet C1500 Suburban LT, LS
1992 - 1994 Chevrolet C1500 Suburban Silverado
1993 Chevrolet C2500 400 SS, Custom
1988 - 1995 Chevrolet C2500 Base, Cheyenne, Silverado
1988 - 1992 Chevrolet C2500 Scottsdale
1994 - 1995 Chevrolet C2500 WT
1992 - 1995 Chevrolet C2500 Suburban Base
1995 Chevrolet C2500 Suburban LS, LT
1992 - 1994 Chevrolet C2500 Suburban Silverado
1994 - 1995 Chevrolet C3500 Base
1988 - 1992 Chevrolet C3500 Scottsdale
1988 - 1995 Chevrolet C3500 Silverado, Cheyenne
1988 Chevrolet Camaro Base
1987 - 1990 Chevrolet Camaro Iroc-Z
1987 Chevrolet Camaro LT, Sport
1989 - 1992 Chevrolet Camaro RS
1987 - 1992 Chevrolet Camaro Z28
1992 Chevrolet Camaro Z28 Heritage Edition, RS Heritage Edition
1987 - 1992 Chevrolet Caprice Base
1987 - 1993 Chevrolet Caprice Classic
1993 Chevrolet Caprice Classic LS
1987 - 1990 Chevrolet Caprice Classic LS Brougham, Classic Brougham
1991 - 1993 Chevrolet Caprice Classic LTZ
1991 - 1994 Chevrolet Commercial Chassis Base
1988 Chevrolet Corvette 35th Anniversary Edition
1987 - 1991 Chevrolet Corvette Base
1990 - 1991 Chevrolet Corvette ZR-1
1987 Chevrolet El Camino SS, Base
1998 Chevrolet Express 1500 LS, Base
1996 Chevrolet Express 2500 LS, Base
1998 Chevrolet Express 3500 LS, Base
1987 Chevrolet G10 Bonaventure
1987 - 1995 Chevrolet G10 Chevy Van, Beauville, Sportvan
1995 Chevrolet G20 Base
1987 - 1995 Chevrolet G20 Beauville, Chevy Van, Sportvan
1987 - 1996 Chevrolet G30 Hi-Cube, Sportvan, Beauville, Chevy Van
1994 - 1995 Chevrolet K1500 Base
1988 - 1995 Chevrolet K1500 Cheyenne, Silverado
1988 - 1992 Chevrolet K1500 Scottsdale
1991 Chevrolet K1500 Sport
1990 - 1995 Chevrolet K1500 WT
1992 - 1995 Chevrolet K1500 Suburban Base
1995 Chevrolet K1500 Suburban LT, LS
1992 - 1994 Chevrolet K1500 Suburban Silverado
1988 - 1992 Chevrolet K2500 Scottsdale
1988 - 1995 Chevrolet K2500 Silverado, Cheyenne
1994 - 1995 Chevrolet K2500 WT, Base
1992 - 1995 Chevrolet K2500 Suburban Base
1995 Chevrolet K2500 Suburban LT, LS
1992 - 1994 Chevrolet K2500 Suburban Silverado
1994 - 1995 Chevrolet K3500 Base
1988 - 1995 Chevrolet K3500 Cheyenne, Silverado
1988 - 1992 Chevrolet K3500 Scottsdale
1987 - 1988 Chevrolet Monte Carlo Base, LS, SS
1987 - 1989 Chevrolet P20 Base, Step-Van
1987 - 1998 Chevrolet P30 Base
1987 - 1990 Chevrolet P30 Step-Van
1987 Chevrolet R10 Scottsdale, Custom Deluxe, Silverado
1987 Chevrolet R10 Suburban Custom Deluxe
1987 - 1988 Chevrolet R10 Suburban Scottsdale, Silverado
1989 - 1991 Chevrolet R1500 Suburban Scottsdale, Silverado
1988 Chevrolet R20 Cheyenne
1987 - 1988 Chevrolet R20 Custom Deluxe, Scottsdale, Silverado
1987 Chevrolet R20 Suburban Custom Deluxe
1987 - 1988 Chevrolet R20 Suburban Scottsdale, Silverado
1989 - 1991 Chevrolet R2500 Suburban Silverado, Scottsdale
1988 Chevrolet R30 Cheyenne
1987 - 1988 Chevrolet R30 Custom Deluxe, Silverado, Scottsdale
1989 - 1990 Chevrolet R3500 Scottsdale
1989 - 1991 Chevrolet R3500 Silverado, Cheyenne
1995 Chevrolet Tahoe LS, Base, LT
1987 Chevrolet V10 Scottsdale, Silverado, Custom Deluxe
1987 Chevrolet V10 Suburban Custom Deluxe
1987 - 1988 Chevrolet V10 Suburban Silverado, Scottsdale
1989 - 1991 Chevrolet V1500 Suburban Scottsdale, Silverado
1987 Chevrolet V20 Silverado, Custom Deluxe, Scottsdale
1987 Chevrolet V20 Suburban Custom Deluxe
1987 - 1988 Chevrolet V20 Suburban Scottsdale, Silverado
1989 - 1991 Chevrolet V2500 Suburban Scottsdale, Silverado
1988 Chevrolet V30 Cheyenne
1987 - 1988 Chevrolet V30 Custom Deluxe, Scottsdale, Silverado
1989 - 1990 Chevrolet V3500 Scottsdale
1989 - 1991 Chevrolet V3500 Silverado, Cheyenne
1993 Excalibur Limited Base
1987 - 1989 Excalibur Phaeton Base
1988 - 1995 GMC C1500 Sierra SLE
1988 - 1993 GMC C1500 Sierra SLX, Sierra
1994 - 1995 GMC C1500 Sierra Special, Sierra SLT, Sierra SL
1992 - 1995 GMC C1500 Suburban SLE, Base
1995 GMC C1500 Suburban SLT
1994 - 1995 GMC C2500 Sierra SL, Sierra SLT
1988 - 1995 GMC C2500 Sierra SLE
1988 - 1993 GMC C2500 Sierra, Sierra SLX
1992 - 1995 GMC C2500 Suburban Base, SLE
1995 GMC C2500 Suburban SLT
1994 - 1995 GMC C3500 Sierra SL, Sierra SLT
1988 - 1995 GMC C3500 Sierra SLE
1988 - 1993 GMC C3500 Sierra, Sierra SLX
1987 GMC Caballero Base, Diablo
1987 - 1995 GMC G1500 Vandura, Rally, Rally STX
1987 - 1995 GMC G2500 Vandura, Rally STX, Rally
1987 - 1988 GMC G3500 Rally Custom
1987 - 1996 GMC G3500 Rally STX, Magnavan, Rally Camper Special, Rally, Vandura, Vandura Special
1987 - 1991 GMC Jimmy Base
1987 - 1990 GMC Jimmy Sierra Classic
1988 - 1995 GMC K1500 Sierra SLE
1995 GMC K1500 Sierra SLS
1994 - 1995 GMC K1500 Sierra Special, Sierra SLT, Sierra SL
1993 GMC K1500 Sierra Sport
1988 - 1993 GMC K1500 Sierra, Sierra SLX
1992 - 1995 GMC K1500 Suburban Base, SLE
1995 GMC K1500 Suburban SLT
1988 - 1995 GMC K2500 Sierra SLE
1994 - 1995 GMC K2500 Sierra SLT, Sierra SL
1988 - 1993 GMC K2500 Sierra, Sierra SLX
1992 - 1995 GMC K2500 Suburban Base, SLE
1995 GMC K2500 Suburban SLT
1988 - 1995 GMC K3500 Sierra SLE
1994 - 1995 GMC K3500 Sierra SLT, Sierra SL
1988 - 1993 GMC K3500 Sierra, Sierra SLX
1987 - 1989 GMC P2500 Value Van, Base
1987 - 1996 GMC P3500 Base
1987 - 1990 GMC P3500 Value Van
1987 GMC R1500 High Sierra, Sierra Classic, Base
1987 - 1991 GMC R1500 Suburban Base
1987 GMC R1500 Suburban High Sierra
1987 - 1989 GMC R1500 Suburban Sierra Classic
1990 GMC R1500 Suburban SLE
1987 - 1989 GMC R2500 Sierra Classic, High Sierra, Base
1987 - 1991 GMC R2500 Suburban Base
1987 GMC R2500 Suburban High Sierra
1987 - 1989 GMC R2500 Suburban Sierra Classic
1990 GMC R2500 Suburban SLE
1987 - 1991 GMC R3500 Base
1987 - 1989 GMC R3500 High Sierra, Sierra Classic
1990 - 1991 GMC R3500 SLE
1987 GMC V1500 Base, High Sierra, Sierra Classic
1987 - 1991 GMC V1500 Suburban Base
1987 GMC V1500 Suburban High Sierra
1987 - 1989 GMC V1500 Suburban Sierra Classic
1990 GMC V1500 Suburban SLE
1987 GMC V2500 High Sierra, Base, Sierra Classic
1987 - 1991 GMC V2500 Suburban Base
1987 GMC V2500 Suburban High Sierra
1987 - 1989 GMC V2500 Suburban Sierra Classic
1990 GMC V2500 Suburban SLE
1987 - 1991 GMC V3500 Base
1987 - 1989 GMC V3500 High Sierra, Sierra Classic
1990 - 1991 GMC V3500 SLE
1993 GMC Yukon GT
1992 - 1995 GMC Yukon SLE, Base
1995 GMC Yukon SLT
1992 - 1994 GMC Yukon Sport
1991 - 1992 Oldsmobile Custom Cruiser Base
1987 - 1992 Pontiac Firebird Base, Trans Am
1989 - 1992 Pontiac Firebird Formula, Trans Am GTA
1989 Pontiac Firebird Trans Am GTA SE
1987 Pontiac Grand Prix Brougham, LE, Base