Magnum Mechanical Roller Camshaft
Pontiac 265-455ci 1955-1981

• Lift: .575"/.575"
• Duration: 308°/308°
• Lobe Separation Angle: 110°
• RPM Range: 3000-6700
  
  Rough idle, maximum street effort. 10.5:1+ compression, 3500+ stall.

  Pontiac; Super Duty; SD; SD455; HO; 455 HO; Trans-Am; Catalina; Firebird; Formula; 421; 455; 400; 428; 350; 265; 301; 370; 389; 301; 287; 317; 347; Ram Air; Ram Air IV; Ram Air III; Bonneville; Grand Prix; LeMans; Parisienne; Grand Am; Century; Regal;

  
  Rough idle, maximum street effort. 10.5:1+ compression, 3500+ stall.
  

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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