Comp Cams CS XE256H-12

• Grind Number: XE256H
• Lifter Type: Hydraulic Flat Tappet
• Description: For '58-'98 262-400 cid Small Block Engines w/ Flat Tappet Cam - Best In 305 Or 350 Tuned Port Injected Engines
• Engine Type:Chevrolet 262-400 c.i. 8 cyl. 1958-1998
• Cam Family: Xtreme Energy"

Specifications:

• RPM Range: 1200 to 5200
• Valve Timing: 0.006
• Lobe Separation: 112°
• Intake Centerline: 108°
  • Intake 
    • Valve Lash: Hyd 
    • Duration: 256
    • Duration @ .050" Lift: 212
    • Valve Lift: 0.449
    • Lobe Lift: 0.299
  • Exhaust 
    • Valve Lash: Hyd
    • Duration: 268
    • Duration @ .050" Lift: 218
    • Valve Lift: 0.456
    • Lobe Lift: 0.304

Vehicle Fitments:

Year Make Model Submodel 1995 - 1996 AM General Hummer Base 1980 - 1991 Avanti II Base 1985 Avanti II GT 1980 - 1981 Buick Century Sport, Estate, Base, Limited 1991 - 1996 Buick Commercial Chassis Base 1980 - 1989 Buick Electra Estate Wagon, Limited, Park Avenue 1989 Buick Electra Park Avenue Ultra 1985 - 1989 Buick Electra T-Type 1980 - 1983 Buick Estate Wagon Base 1985 Buick LeSabre Collector's Edition 1982 - 1990 Buick LeSabre Custom 1985 - 1990 Buick LeSabre Estate Wagon 1982 Buick LeSabre Limited Edition F/E 1980 - 1990 Buick LeSabre Limited, Base 1980 - 1981 Buick LeSabre Sport 1987 Buick LeSabre T-Type 1987 Buick Regal GNX 1986 - 1987 Buick Regal Grand National 1980 - 1987 Buick Regal Limited, Base 1980 - 1981 Buick Regal Sport 1986 Buick Regal T-Type 1980 - 1985 Buick Riviera Base 1982 Buick Riviera Limited Edition 1983 - 1985 Buick Riviera Luxury 1980 Buick Riviera S 1981 - 1985 Buick Riviera T-Type 1983 Buick Riviera XX Anniversary Edition 1996 Buick Roadmaster Collector's Edition, Limited Collector's Edition, Estate Wagon Collector's Edition 1991 - 1995 Buick Roadmaster Estate Wagon 1992 - 1995 Buick Roadmaster Limited, Base 1987 - 1992 Cadillac Brougham Base, d'Elegance 1992 - 1996 Cadillac Commercial Chassis Brougham, Base 1980 Cadillac Eldorado Base, Biarritz, Cabriolet 1986 Cadillac Fleetwood Brougham Commercial Chassis, Brougham d'Elegance, 75 Formal, 75 1986 - 1996 Cadillac Fleetwood Brougham, Base 1980 Cadillac Seville Base, Elegante 2008 - 2009 Cadillac STS Platinum 2006 - 2009 Cadillac STS V, Base 2006 - 2008 Cadillac XLR Base 2008 - 2009 Cadillac XLR Platinum 2006 - 2009 Cadillac XLR V 1980 - 1982 Checker Marathon Base, Deluxe 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 1980 Chevrolet C10 Big Ten, Custom Deluxe 1980 - 1981 Chevrolet C10 Cheyenne 1981 Chevrolet C10 Deluxe 1980 - 1986 Chevrolet C10 Silverado, Scottsdale, Custom 1981 - 1986 Chevrolet C10 Suburban Custom 1980 Chevrolet C10 Suburban Custom Deluxe 1981 Chevrolet C10 Suburban Deluxe 1980 - 1986 Chevrolet C10 Suburban Silverado, Scottsdale 1990 - 1993 Chevrolet C1500 454 SS 1989 - 1997 Chevrolet C1500 Base 1988 - 1998 Chevrolet C1500 Cheyenne, Silverado 1999 Chevrolet C1500 LS 1988 - 1992 Chevrolet C1500 Scottsdale 1990 - 1998 Chevrolet C1500 WT 1992 - 1995 Chevrolet C1500 Suburban Base 1995 Chevrolet C1500 Suburban LS, LT 1992 - 1994 Chevrolet C1500 Suburban Silverado 1986 Chevrolet C20 Base 1981 - 1986 Chevrolet C20 Custom 1980 Chevrolet C20 Custom Deluxe 1981 Chevrolet C20 Deluxe 1980 - 1986 Chevrolet C20 Silverado, Cheyenne, Scottsdale 1981 - 1986 Chevrolet C20 Suburban Custom 1980 Chevrolet C20 Suburban Custom Deluxe 1981 Chevrolet C20 Suburban Deluxe 1980 - 1986 Chevrolet C20 Suburban Scottsdale, Silverado 1993 Chevrolet C2500 400 SS, Custom 1988 - 1999 Chevrolet C2500 Base 1988 - 1998 Chevrolet C2500 Cheyenne, Silverado 1999 Chevrolet C2500 LS 1988 - 1992 Chevrolet C2500 Scottsdale 1994 - 1998 Chevrolet C2500 WT 1992 - 1995 Chevrolet C2500 Suburban Base 1995 Chevrolet C2500 Suburban LS, LT 1992 - 1994 Chevrolet C2500 Suburban Silverado 1980 - 1982 Chevrolet C30 Base 1980 - 1981 Chevrolet C30 Cheyenne 1981 - 1986 Chevrolet C30 Custom 1980 Chevrolet C30 Custom Deluxe 1981 Chevrolet C30 Deluxe 1980 - 1986 Chevrolet C30 Scottsdale, Silverado 1994 - 1995 Chevrolet C3500 Base 1988 - 1995 Chevrolet C3500 Cheyenne, Silverado 1988 - 1992 Chevrolet C3500 Scottsdale 1980 - 1988 Chevrolet Camaro Base 1980 - 1986 Chevrolet Camaro Berlinetta 1985 - 1990 Chevrolet Camaro Iroc-Z 1987 Chevrolet Camaro LT 1980 Chevrolet Camaro Rally Sport 1989 - 1992 Chevrolet Camaro RS 1992 Chevrolet Camaro RS Heritage Edition, Z28 Heritage Edition 1981 - 1987 Chevrolet Camaro Sport 1980 - 1992 Chevrolet Camaro Z28 1982 Chevrolet Camaro Z28 Indianapolis 500 Pace Car 1980 - 1992 Chevrolet Caprice Base 1980 - 1996 Chevrolet Caprice Classic 1986 - 1990 Chevrolet Caprice Classic Brougham 1981 - 1982 Chevrolet Caprice Classic Estate 1980 - 1981 Chevrolet Caprice Classic Landau 1993 - 1994 Chevrolet Caprice Classic LS 1987 - 1990 Chevrolet Caprice Classic LS Brougham 1991 - 1993 Chevrolet Caprice Classic LTZ 1980 Chevrolet Caprice Classic Sport 1991 - 1994 Chevrolet Commercial Chassis Base 1988 Chevrolet Corvette 35th Anniversary Edition 1980 - 1991 Chevrolet Corvette Base 1982 Chevrolet Corvette Collector's Edition 1986 Chevrolet Corvette Indianapolis 500 Pace Car 1990 - 1991 Chevrolet Corvette ZR-1 1980 - 1987 Chevrolet El Camino Base, SS 1981 - 1986 Chevrolet El Camino Conquista 1980 - 1981 Chevrolet El Camino Royal Knight 1996 - 2002 Chevrolet Express 1500 LS, Base 2001 - 2002 Chevrolet Express 1500 LT 1996 - 2002 Chevrolet Express 2500 Base, LS 1983 Chevrolet G10 Base 1980 - 1995 Chevrolet G10 Beauville, Sportvan, Chevy Van 1981 - 1987 Chevrolet G10 Bonaventure 1995 Chevrolet G20 Base 1983 - 1984 Chevrolet G20 Bonaventure 1980 - 1981 Chevrolet G20 Nomad 1980 - 1995 Chevrolet G20 Sportvan, Beauville, Chevy Van 1983 - 1984 Chevrolet G30 Bonaventure 1980 - 1996 Chevrolet G30 Hi-Cube, Beauville, Chevy Van, Sportvan 1980 - 1985 Chevrolet Impala Base 1981 - 1982 Chevrolet Impala Estate 1980 Chevrolet Impala Sport 1994 - 1996 Chevrolet Impala SS 1980 - 1981 Chevrolet K10 Cheyenne 1981 - 1986 Chevrolet K10 Custom 1980 Chevrolet K10 Custom Deluxe 1981 Chevrolet K10 Deluxe 1980 - 1986 Chevrolet K10 Scottsdale, Silverado 1981 - 1986 Chevrolet K10 Suburban Custom 1980 Chevrolet K10 Suburban Custom Deluxe 1981 Chevrolet K10 Suburban Deluxe 1980 - 1986 Chevrolet K10 Suburban Scottsdale, Silverado 1994 - 1997 Chevrolet K1500 Base 1988 - 1998 Chevrolet K1500 Cheyenne, Silverado 1999 Chevrolet K1500 LS 1988 - 1992 Chevrolet K1500 Scottsdale 1991 Chevrolet K1500 Sport 1990 - 1998 Chevrolet K1500 WT 1992 - 1995 Chevrolet K1500 Suburban Base 1995 Chevrolet K1500 Suburban LT, LS 1992 - 1994 Chevrolet K1500 Suburban Silverado 1980 - 1981 Chevrolet K20 Cheyenne 1981 - 1986 Chevrolet K20 Custom 1980 Chevrolet K20 Custom Deluxe 1981 Chevrolet K20 Deluxe 1980 - 1986 Chevrolet K20 Scottsdale, Silverado 1981 - 1986 Chevrolet K20 Suburban Custom 1980 Chevrolet K20 Suburban Custom Deluxe 1981 Chevrolet K20 Suburban Deluxe 1980 - 1986 Chevrolet K20 Suburban Scottsdale, Silverado 1994 - 1995 Chevrolet K2500 Base 1988 - 1998 Chevrolet K2500 Cheyenne, Silverado 1988 - 1992 Chevrolet K2500 Scottsdale 1994 - 1998 Chevrolet K2500 WT 1992 - 1995 Chevrolet K2500 Suburban Base 1995 Chevrolet K2500 Suburban LT, LS 1992 - 1994 Chevrolet K2500 Suburban Silverado 1980 - 1981 Chevrolet K30 Cheyenne 1981 - 1986 Chevrolet K30 Custom 1980 Chevrolet K30 Custom Deluxe 1981 Chevrolet K30 Deluxe 1980 - 1986 Chevrolet K30 Scottsdale, Silverado 1994 - 1995 Chevrolet K3500 Base 1988 - 1992 Chevrolet K3500 Scottsdale 1988 - 1995 Chevrolet K3500 Silverado, Cheyenne 1980 Chevrolet K5 Blazer Cheyenne, Custom Deluxe 1981 - 1986 Chevrolet K5 Blazer Custom 1981 Chevrolet K5 Blazer Deluxe 1984 Chevrolet K5 Blazer Scottsdale 1980 - 1986 Chevrolet K5 Blazer Silverado 1980 - 1983 Chevrolet Malibu Classic 1980 Chevrolet Malibu Classic Estate, Estate, Sport, Classic Sport 1980 - 1981 Chevrolet Malibu Classic Landau, Base 1981 - 1988 Chevrolet Monte Carlo Base 1983 Chevrolet Monte Carlo CL 1980 - 1981 Chevrolet Monte Carlo Landau 1986 - 1988 Chevrolet Monte Carlo LS 1980 Chevrolet Monte Carlo Sport 1983 - 1988 Chevrolet Monte Carlo SS 1980 - 1989 Chevrolet P20 Base, Step-Van 1980 - 1996 Chevrolet P30 Base 1980 - 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, Silverado, Scottsdale 1987 Chevrolet R20 Suburban Custom Deluxe 1987 - 1988 Chevrolet R20 Suburban Scottsdale, Silverado 1989 Chevrolet R2500 Cheyenne, Silverado, Scottsdale 1989 - 1991 Chevrolet R2500 Suburban Silverado, Scottsdale 1988 Chevrolet R30 Cheyenne 1987 - 1988 Chevrolet R30 Silverado, Custom Deluxe, Scottsdale 1989 - 1990 Chevrolet R3500 Scottsdale 1989 - 1991 Chevrolet R3500 Silverado, Cheyenne 1995 Chevrolet Tahoe LS, LT, Base 1987 Chevrolet V10 Silverado, Custom Deluxe, Scottsdale 1987 Chevrolet V10 Suburban Custom Deluxe 1987 - 1988 Chevrolet V10 Suburban Scottsdale, Silverado 1989 - 1991 Chevrolet V1500 Suburban Scottsdale, Silverado 1987 Chevrolet V20 Scottsdale, Custom Deluxe, Silverado 1987 Chevrolet V20 Suburban Custom Deluxe 1987 - 1988 Chevrolet V20 Suburban Scottsdale, Silverado 1989 - 1991 Chevrolet V2500 Suburban Silverado, Scottsdale 1988 Chevrolet V30 Cheyenne 1987 - 1988 Chevrolet V30 Scottsdale, Custom Deluxe, Silverado 1989 - 1991 Chevrolet V3500 Cheyenne, Silverado 1989 - 1990 Chevrolet V3500 Scottsdale 1993 Excalibur Limited Base 1985 Excalibur Phaeton Anniversary 1980 - 1989 Excalibur Phaeton Base 1980 - 1986 GMC C1500 Base, Sierra Classic, High Sierra 1980 GMC C1500 Heavy Half 1980 - 1982 GMC C1500 Sierra Grande, Street Coupe 1997 GMC C1500 Sierra GT 1988 - 1999 GMC C1500 Sierra SLE 1994 - 1999 GMC C1500 Sierra SLT, Sierra SL 1988 - 1993 GMC C1500 Sierra SLX, Sierra 1994 - 1998 GMC C1500 Sierra Special 1980 - 1995 GMC C1500 Suburban Base 1980 - 1986 GMC C1500 Suburban High Sierra, Sierra Classic 1980 - 1982 GMC C1500 Suburban Sierra Grande 1992 - 1995 GMC C1500 Suburban SLE 1995 GMC C1500 Suburban SLT 1980 - 1986 GMC C2500 Base, Sierra Classic, High Sierra 1980 - 1982 GMC C2500 Sierra Grande 1994 - 1999 GMC C2500 Sierra SL, Sierra SLT 1988 - 1999 GMC C2500 Sierra SLE 1988 - 1993 GMC C2500 Sierra, Sierra SLX 1980 - 1995 GMC C2500 Suburban Base 1980 - 1986 GMC C2500 Suburban High Sierra, Sierra Classic 1980 - 1982 GMC C2500 Suburban Sierra Grande 1992 - 1995 GMC C2500 Suburban SLE 1995 GMC C2500 Suburban SLT 1980 - 1986 GMC C3500 Sierra Classic, High Sierra, Base 1980 - 1982 GMC C3500 Sierra Grande 1988 - 1995 GMC C3500 Sierra SLE 1994 - 1995 GMC C3500 Sierra SLT, Sierra SL 1988 - 1993 GMC C3500 Sierra, Sierra SLX 1981 - 1986 GMC Caballero Amarillo 1980 - 1987 GMC Caballero Diablo, Base 1980 GMC Caballero Laredo 1981 GMC Caballero Royal Knight, Conquista 1983 - 1984 GMC G1500 Rally Custom 1980 - 1995 GMC G1500 Rally, Vandura, Rally STX 1983 - 1984 GMC G2500 Rally Custom 1980 - 1995 GMC G2500 Rally, Rally STX, Vandura 1981 - 1988 GMC G3500 Rally Custom 1980 - 1996 GMC G3500 Vandura, Rally STX, Vandura Special, Magnavan, Rally Camper Special, Rally 1980 - 1991 GMC Jimmy Base 1980 - 1985 GMC Jimmy High Sierra 1980 - 1990 GMC Jimmy Sierra Classic 1986 GMC Jimmy Silverado 1980 - 1982 GMC Jimmy Street Coupe, Sierra Grande 1980 - 1986 GMC K1500 High Sierra, Sierra Classic, Base 1980 - 1982 GMC K1500 Sierra Grande 1988 - 1999 GMC K1500 Sierra SLE 1995 GMC K1500 Sierra SLS 1994 - 1999 GMC K1500 Sierra SLT, Sierra SL 1988 - 1993 GMC K1500 Sierra SLX, Sierra 1994 - 1998 GMC K1500 Sierra Special 1993 GMC K1500 Sierra Sport 1980 - 1995 GMC K1500 Suburban Base 1980 - 1986 GMC K1500 Suburban Sierra Classic, High Sierra 1980 - 1982 GMC K1500 Suburban Sierra Grande 1992 - 1995 GMC K1500 Suburban SLE 1995 GMC K1500 Suburban SLT 1980 - 1986 GMC K2500 Base, Sierra Classic, High Sierra 1980 - 1982 GMC K2500 Sierra Grande 1988 - 1998 GMC K2500 Sierra SLE 1994 - 1998 GMC K2500 Sierra SLT, Sierra SL 1988 - 1993 GMC K2500 Sierra SLX, Sierra 1980 - 1995 GMC K2500 Suburban Base 1980 - 1986 GMC K2500 Suburban Sierra Classic, High Sierra 1980 - 1982 GMC K2500 Suburban Sierra Grande 1992 - 1995 GMC K2500 Suburban SLE 1995 GMC K2500 Suburban SLT 1980 - 1986 GMC K3500 High Sierra, Sierra Classic, Base 1980 - 1982 GMC K3500 Sierra Grande 1988 - 1995 GMC K3500 Sierra SLE 1994 - 1995 GMC K3500 Sierra SLT, Sierra SL 1988 - 1993 GMC K3500 Sierra SLX, Sierra 1980 - 1989 GMC P2500 Base, Value Van 1980 - 1996 GMC P3500 Base 1980 - 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, Base, High Sierra 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 1996 - 2002 GMC Savana 1500 Base 1996 - 2000 GMC Savana 1500 SLE 2001 - 2002 GMC Savana 1500 SLT 1996 - 2002 GMC Savana 2500 Base 1996 - 2000 GMC Savana 2500 SLE 2001 - 2002 GMC Savana 2500 SLT 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 Sierra Classic, High Sierra 1990 - 1991 GMC V3500 SLE 1993 GMC Yukon GT 1992 - 1995 GMC Yukon SLE, Base 1995 GMC Yukon SLT 1992 - 1994 GMC Yukon Sport 2006 Hummer H1 Alpha 1980 - 1981 Oldsmobile 98 Luxury 1980 - 1984 Oldsmobile 98 Regency 1982 - 1984 Oldsmobile 98 Regency Brougham 1980 - 1992 Oldsmobile Custom Cruiser Base 1980 Oldsmobile Cutlass Base, Brougham, LS 1980 - 1984 Oldsmobile Cutlass Calais Base 1983 - 1984 Oldsmobile Cutlass Calais Hurst 1980 - 1983 Oldsmobile Cutlass Cruiser Base 1980 - 1981 Oldsmobile Cutlass Cruiser Brougham 1985 - 1986 Oldsmobile Cutlass Salon 442 1980 - 1987 Oldsmobile Cutlass Salon Base 1980 Oldsmobile Cutlass Salon Brougham 1987 Oldsmobile Cutlass Supreme 442 1980 - 1988 Oldsmobile Cutlass Supreme Base 1980 - 1987 Oldsmobile Cutlass Supreme Brougham 1988 Oldsmobile Cutlass Supreme International, Indy 500 Pace Car, SL, Classic, Classic Brougham 1985 Oldsmobile Cutlass Supreme LS 1980 - 1983 Oldsmobile Delta 88 Base 1980 - 1981 Oldsmobile Delta 88 Holiday 1984 - 1985 Oldsmobile Delta 88 Royale Brougham LS 1980 - 1985 Oldsmobile Delta 88 Royale Brougham, Royale 1980 - 1985 Oldsmobile Toronado Brougham 1985 Oldsmobile Toronado Caliente 1980 - 1981 Oldsmobile Toronado XSC 1980 - 1986 Pontiac Bonneville Brougham, Base 1984 - 1986 Pontiac Bonneville LE 1980 - 1981 Pontiac Bonneville Safari 1980 - 1981 Pontiac Catalina Safari, Base 1980 - 1981 Pontiac Firebird Esprit 1982 - 1986 Pontiac Firebird S/E 1994 Pontiac Firebird Trans Am GT 1989 - 1992 Pontiac Firebird Trans Am GTA 1989 Pontiac Firebird Trans Am GTA SE 1980 - 1997 Pontiac Firebird Trans Am, Base, Formula 1980 Pontiac Grand Am Base 1981 Pontiac Grand LeMans SA 1980 - 1981 Pontiac Grand LeMans Safari, Base, LE 1980 - 1987 Pontiac Grand Prix Base 1981 - 1987 Pontiac Grand Prix Brougham 1984 - 1987 Pontiac Grand Prix LE 1980 - 1983 Pontiac Grand Prix LJ 1980 Pontiac Grand Prix SJ 1980 - 1981 Pontiac LeMans Safari, Base 1983 - 1986 Pontiac Parisienne Brougham, Base 1987 - 1989 Pontiac Safari Base