Xtreme Energy XR270HR;Cam,Lifters,Timing Set
Includes Cam,Lifters,& Timing Set:
" For OE-Style Hydraulic Roller Lifters; Fits '87-'02 305-350 cid Chevy Small Blocks2 (Except LT1)
" High performance applications.
" Largest w/ stock converter.
" Noticeable idle.
" Xtreme Energy" Cams: Quick opening lobe profiles deliver increased responsiveness, more area under the lift curve & more vacuum which allows an increase in duration for improved performance & assists power brakes.
" Excellent performance in street or street/strip applications.
" Best performance w/ aftermarket intake manifolds, headers, lower gear ratios, etc.
Specifications
Lifter Type: OE-Style Hydraulic Roller
Engine Family: Chevrolet 305-350 c.i. V8 1987-2002 (Except LT1/LT4)
Cam Family: Xtreme Energy"
RPM Range: 1600 to 5400
Valve Timing: 0.006
Lobe Separation: 110°
Intake Centerline: 106°
Valve Lash: Hyd.(Intake) / Hyd.(Exhaust)
Duration: 270(Intake)/ 276(Exhaust)
Duration @ .050" Lift: 218(Intake)/ 224(Exhaust)
Valve Lift: 0.495(Intake)/ 0.502(Exhaust)
Lobe Lift: 0.33(Intake)/ 0.335(Exhaust)
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 | Brougham, Base |
| 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 |
| 1994 | Chevrolet | Blazer | Silverado Sport, Base |
| 1990 - 1993 | Chevrolet | C1500 | 454 SS |
| 1989 - 1995 | Chevrolet | C1500 | Base |
| 1988 - 1992 | Chevrolet | C1500 | Scottsdale |
| 1988 - 1995 | Chevrolet | C1500 | Silverado, Cheyenne |
| 1990 - 1995 | Chevrolet | C1500 | WT |
| 1992 - 1995 | Chevrolet | C1500 Suburban | Base |
| 1995 | Chevrolet | C1500 Suburban | LS, LT |
| 1992 - 1994 | Chevrolet | C1500 Suburban | Silverado |
| 1993 | Chevrolet | C2500 | 400 SS, Custom |
| 1988 - 1992 | Chevrolet | C2500 | Scottsdale |
| 1988 - 1995 | Chevrolet | C2500 | Silverado, Cheyenne, Base |
| 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 |
| 1996 | Chevrolet | Express 2500 | Base, LS |
| 1987 | Chevrolet | G10 | Bonaventure |
| 1987 - 1995 | Chevrolet | G10 | Chevy Van, Beauville, Sportvan |
| 1995 | Chevrolet | G20 | Base |
| 1987 - 1995 | Chevrolet | G20 | Sportvan, Chevy Van, Beauville |
| 1987 - 1996 | Chevrolet | G30 | Beauville, Hi-Cube, Sportvan, 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 | LS, LT |
| 1992 - 1994 | Chevrolet | K1500 Suburban | Silverado |
| 1994 - 1995 | Chevrolet | K2500 | Base, WT |
| 1988 - 1995 | Chevrolet | K2500 | Cheyenne, Silverado |
| 1988 - 1992 | Chevrolet | K2500 | Scottsdale |
| 1992 - 1995 | Chevrolet | K2500 Suburban | Base |
| 1995 | Chevrolet | K2500 Suburban | LS, LT |
| 1992 - 1994 | Chevrolet | K2500 Suburban | Silverado |
| 1994 - 1995 | Chevrolet | K3500 | Base |
| 1988 - 1992 | Chevrolet | K3500 | Scottsdale |
| 1988 - 1995 | Chevrolet | K3500 | Silverado, Cheyenne |
| 1987 - 1988 | Chevrolet | Monte Carlo | LS, Base, SS |
| 1987 - 1989 | Chevrolet | P20 | Step-Van, Base |
| 1987 - 1998 | Chevrolet | P30 | Base |
| 1987 - 1990 | Chevrolet | P30 | Step-Van |
| 1987 | Chevrolet | R10 | Custom Deluxe, Scottsdale, 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 | Scottsdale, Custom Deluxe, Silverado |
| 1987 | Chevrolet | R20 Suburban | Custom Deluxe |
| 1987 - 1988 | Chevrolet | R20 Suburban | 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 | Base, LT, LS |
| 1987 | Chevrolet | V10 | Custom Deluxe, Silverado, Scottsdale |
| 1987 | Chevrolet | V10 Suburban | Custom Deluxe |
| 1987 - 1988 | Chevrolet | V10 Suburban | Scottsdale, Silverado |
| 1989 - 1991 | Chevrolet | V1500 Suburban | Silverado, Scottsdale |
| 1987 | Chevrolet | V20 | Scottsdale, Custom Deluxe, Silverado |
| 1987 | Chevrolet | V20 Suburban | Custom Deluxe |
| 1987 - 1988 | Chevrolet | V20 Suburban | Silverado, Scottsdale |
| 1989 - 1991 | Chevrolet | V2500 Suburban | Scottsdale, Silverado |
| 1988 | Chevrolet | V30 | Cheyenne |
| 1987 - 1988 | Chevrolet | V30 | Custom Deluxe, Silverado, Scottsdale |
| 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 |
| 1994 - 1995 | GMC | C1500 | Sierra Special, Sierra SL, Sierra SLT |
| 1988 - 1993 | GMC | C1500 | Sierra, Sierra SLX |
| 1992 - 1995 | GMC | C1500 Suburban | Base, SLE |
| 1995 | GMC | C1500 Suburban | SLT |
| 1988 - 1995 | GMC | C2500 | Sierra SLE |
| 1994 - 1995 | GMC | C2500 | Sierra SLT, Sierra SL |
| 1988 - 1993 | GMC | C2500 | Sierra, Sierra SLX |
| 1992 - 1995 | GMC | C2500 Suburban | Base, SLE |
| 1995 | GMC | C2500 Suburban | SLT |
| 1988 - 1995 | GMC | C3500 | Sierra SLE |
| 1994 - 1995 | GMC | C3500 | Sierra SLT, Sierra SL |
| 1988 - 1993 | GMC | C3500 | Sierra SLX, Sierra |
| 1987 | GMC | Caballero | Diablo, Base |
| 1987 - 1995 | GMC | G1500 | Rally, Vandura, Rally STX |
| 1987 - 1995 | GMC | G2500 | Rally, Rally STX, Vandura |
| 1987 - 1996 | GMC | G3500 | Magnavan, Rally, Vandura Special, Vandura, Rally Camper Special, Rally STX |
| 1987 - 1988 | GMC | G3500 | Rally Custom |
| 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 SLT, Sierra Special, 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 SLX, Sierra |
| 1992 - 1995 | GMC | K2500 Suburban | SLE, Base |
| 1995 | GMC | K2500 Suburban | SLT |
| 1988 - 1995 | GMC | K3500 | Sierra SLE |
| 1994 - 1995 | GMC | K3500 | Sierra SLT, Sierra SL |
| 1988 - 1993 | GMC | K3500 | Sierra SLX, Sierra |
| 1987 - 1989 | GMC | P2500 | Base, Value Van |
| 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, 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 |
| 1987 | GMC | V1500 | Base, Sierra Classic, High Sierra |
| 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 | Base, High Sierra, 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 |
| 1989 - 1992 | Pontiac | Firebird | Formula, Trans Am GTA |
| 1989 | Pontiac | Firebird | Trans Am GTA SE |
| 1987 - 1992 | Pontiac | Firebird | Trans Am, Base |
| 1987 | Pontiac | Grand Prix | Brougham, Base, LE |