Chevy SBC 350 5.7L HP Stage 5 485/485 Lift Mechanical Cam Camshaft MC1612. oem #3849346, 290hp, 302 365/375 hp327

 These cams are brand new in the box from the factory. Please look at the second picture for cam specs.

Mechanical Lifter Cam
Stage 5 Cam (see cam range & selection chart), (2nd Picture).
Duration @ .050 Intake 254 Exhaust 254
Advanced Duration Intake 295 Exhaust 295
Valve Lift .485 Exhaust .485
Lobe Sep. Intake 110 Exhaust 118
Power range 3200-7500
Idle lash .030 int. .030 exh very rough
Comment: Heavy Lope 
Lifter: 992


General Stage 5 Camshaft Specifications: 

  • Idle Quality:  Rough With Heavy Lope. 
  • Torque:      Mid To High Ranges 3200-7500 RPM
  • Fuel Economy:      Poor

Recommendations:

  • Towing:Not Recommended
  • Racing: Bracket Drag Racing, Oval Track
  • Computer Controlled Vehicles: Not Recommended
  • Transmission: Automatic With High Stall Converter or Heavy Duty Manual
  • Compression Ratio: 10.5:1 To 12.0:1. Check Valve to Piston Clearance