Magnum 305H Hydraulic Flat Tappet Camshaft
Lift: .575''/.575"
Duration: 305°/305°
RPM Range: 3000-6800


*Note: In order to use these camshafts in 1965-66 396/427ci blocks, it is necessary to machine a 3/16' wide x 7/64' deep groove in the rear main journal of the cam to allow oil flow to the top of the engine.

Limited street use or Bracket Racing. 10.5:1 compression, 3500+ stall or 4-speed. 4.10:1 or lower gear. Radical Idle.

Operating Range:	3000-6800 RPM
Duration Advertised:	305° Intake / 305° Exhaust
Duration @ .050' Lift:	253° Intake / 253° Exhaust
Valve Lift w/1.7 Rockers:	.575' Intake / .575' Exhaust
Lobe Separation Angle:	110°

Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572


Limited street use or bracket racing. 10.5:1+ compression, 3500+ stall or 4 speed. 4.10 or lower gears. Radical Idle.

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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