High Performance Cam for 1997-2007 Chevy GM LS V8 Engines without AFM-Active Fuel Management.

 3 bolt Cam. Stock valve springs cannot be used. Not compatible with Active Fuel Management (AFM). An AFM delete kit and/or disabling the AFM through the ECM is required. Custom computer tuning required.

Rough Idle. Intake vacuum may be too low for power brakes. Good Mid-Range torque 3,000-4,000 RPM. Operating power range between 2,200-5,400 RPM.  Not recommended for Towing. Compression Ratio 10.5:1 to 11.0:1. Manual transmission or high stall automatic. Seat pressure 120# closed 300# open. 3.90:1 to 4.50:1 Axle Ratio.

Specs:
  • Duration @ .050":         Intake: 238° Exhaust: 242°
  • Advertised Duration:     Intake: 296° Exhaust: 299°
  • Valve Lift:                      Intake: .595" Exhaust: .595"
  • Lobe Separation:          Intake: 108°  Exhaust: 116°
  • Power Range:               3,000-7,000
  • Idle:     Noticeable/Fair

 

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