- Grind Number: XR271HR-12
- Lifter Type: Hydraulic Roller Lifter
- Engine Family: Chevrolet Gen VI 454 C.i. 8 CYL. 1996-1999
- Description: Hydraulic Roller-Works well with ported heads, computer modifications, and serious valve train upgrade required, needs 2200+ stall.
- Cam Family: Xtreme EnergyT Hydraulic Roller Camshafts for computer controlled engines
| 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: | |||||||||||||||||||||||||||
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Vehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1996 - 2000 | Chevrolet | C2500 | Base |
| 1996 - 1998 | Chevrolet | C2500 | Cheyenne, Silverado |
| 1999 - 2000 | Chevrolet | C2500 | LS |
| 1998 | Chevrolet | C2500 | WT |
| 1996 - 1999 | Chevrolet | C2500 Suburban | Base, LS |
| 1996 - 1997 | Chevrolet | C2500 Suburban | LT |
| 1996 - 2000 | Chevrolet | C3500 | Base |
| 1999 - 2000 | Chevrolet | C3500 | LS |
| 1996 - 1998 | Chevrolet | C3500 | Silverado, Cheyenne |
| 1996 - 2000 | Chevrolet | Express 3500 | Base, LS |
| 1996 | Chevrolet | G30 | Chevy Van, Beauville, Sportvan, Hi-Cube |
| 1996 - 2000 | Chevrolet | K2500 | Base |
| 1999 - 2000 | Chevrolet | K2500 | LS |
| 1996 - 1998 | Chevrolet | K2500 | Silverado, Cheyenne |
| 1998 | Chevrolet | K2500 | WT |
| 1996 - 1999 | Chevrolet | K2500 Suburban | Base, LS |
| 1996 - 1997 | Chevrolet | K2500 Suburban | LT |
| 1996 - 2000 | Chevrolet | K3500 | Base |
| 1996 - 1998 | Chevrolet | K3500 | Cheyenne, Silverado |
| 1999 - 2000 | Chevrolet | K3500 | LS |
| 1996 - 1999 | Chevrolet | P30 | Base |
| 1996 - 2000 | GMC | C2500 | Sierra SLT, Sierra SLE, Sierra SL |
| 1996 - 1999 | GMC | C2500 Suburban | Base, SLT, SLE |
| 1996 - 2000 | GMC | C3500 | Sierra SLT, Sierra SL, Sierra SLE |
| 1996 | GMC | G3500 | Rally Camper Special, Rally, Rally STX, Magnavan, Vandura, Vandura Special |
| 1996 - 2000 | GMC | K2500 | Sierra SL, Sierra SLT, Sierra SLE |
| 1996 - 1999 | GMC | K2500 Suburban | Base, SLT, SLE |
| 1996 - 2000 | GMC | K3500 | Sierra SLE, Sierra SLT, Sierra SL |
| 1996 - 1999 | GMC | P3500 | Base |
| 1996 - 2000 | GMC | Savana 3500 | Base, SLE |