306AR-10 Big Block chevy 454 solid roller camshaft Marine/Race 270/280 LSA 110 396, 454

Use in 454c.i. or larger engines. 11.5:1+ compression. Hydro, flat bottom jet boat with B impeller. Bracket racing. Easy on parts.

Great also for Street Machines as easy street roller lobes. 

BBC MECHANICAL ROLLER Camshaft Use in 454 c.i. or larger engines. Needs 11.5:1 compression -

11-702-9 Camshaft Specs:

Engine Family     Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)

RPM Operating Range    4,500-7000

Cam Type            Solid Roller / Mechanical Roller

Camshaft Usage:  Marine / Truck Puller and Mud Race

Advertised Intake Duration           306

Advertised Exhaust Duration       319

Intake Duration at .050 Inch Lift  271

Exhaust Duration at .050 Inch Lift               282

Intake Valve Lift 0.68

Exhaust Valve Lift              0.68

Lobe Separation                110

Valve Timing Lift                0.02

Exhaust Close ATDC         49

Intake Open BTDC            45

Exhaust Open BBDC        89

Intake Close ABDC            81

Lifter Style           Solid Roller