Chevrolet Big Block
Adv. Duration: 299/305
Duration @ .050": 264/270
Lift: .561/.580
Lobe Separation: 112 LC
Included Lifters: 91115 Mechanical Flat Tappet
3600-7200.  Increased mid-range torque & horsepower. Can be used with NOS.

Chevrolet Big Block
Adv. Duration: 299/305
Duration @ .050": 264/270
Lift: .561/.580
Lobe Separation: 112 LC
Included Lifters: 91118 Direct Lube Flat Tappet
3600-7200.  Increased mid-range torque & horsepower. Can be used with NOS.

Chevrolet Big Block
Adv. Duration: 342/333
Duration @ .050": 264/270
Lift: .579/.600
Lobe Separation: 112 LC
Included Lifters: 91115 Mech. Flat Tappet
2800-6800. Near duplicate of the Chev L88 430HP/427 cam (GM#3928911).

Chevrolet Big Block
Adv. Duration: 342/333
Duration @ .050: 264/270
Lift: .579/.600
Lobe Separation: 112 LC
Included Lifters: 91118 Direct Lube Mech. Flat Tappet
2800-6800.  Near duplicate of the Chev L88 430HP/427 cam (GM #3928911).

Chevrolet Big Block
Adv. Duration: 303/311
Duration @ .050": 268/276
Lift: .650/.670
Lobe Separation: 112 LC
Included Lifters: 91115 Mechanical Flat Tappet
4000-7400.  Competition use, great mid & upper rpm horsepower. 12.5-1-up needed.

Chevrolet Big Block
Adv. Duration: 303/311
Duration @ .050": 268/276
Lift: .650/.670
Lobe Separation: 112 LC
Included Lifters: 91118 Direct Lube Mech. Flat Tappet
4000-7400.  Competition use, great mid & upper rpm horsepower. 12.5-1-up needed.

Chevrolet Big Block
Adv. Duration: 303/313
Duration @ .050": 268/278
Lift: .623/.650
Lobe Separation: 108 LC
Included Lifters: 91115 Mechanical Flat Tappet
4000-7600.  Moderate competition, excellent mid & upper rpm power. 12.0-1 CR.

Chevrolet Big Block
Adv. Duration: 303/313
Duration @ .050": 268/278
Lift: .623/.650
Lobe Separation: 108 LC
Included Lifters: 91118 Direct Lube Mech. Flat Tappet
4000-7600.  Moderate competition, excellent mid & upper rpm power. 12.0-1 CR.

Chevrolet Big Block
Adv. Duration: 303/313
Duration @ .050: 268/278
Lift: .623/.650
Lobe Separation: 108 LC
Included Lifters: 91115 Mech. Flat Tappet
3800-7600. Moderate competition, excellent mid & upper RPM power. 12.0-1 CR.

Chevrolet Big Block
Adv. Duration: 303/313
Duration @ .050: 268/278
Lift: .623/.650
Lobe Separation: 108 LC
Included Lifters: 91118 Direct Lube Mech. Flat Tappet
3800-7600. Moderate competition, excellent mid & upper RPM power. 12.0-1 CR.

Chevrolet Big Block
Adv. Duration: 309/317
Duration @ .050": 274/282
Lift: .680/.680
Lobe Separation: 110 LC
Included Lifters: 91115 Mechanical Flat Tappet
4400-7800.  Drag or Modified. Best in big cubic inch. Aggressive upper rpm. 12.5:1+ CR.

Chevrolet Big Block
Adv. Duration: 309/317
Duration @ .050": 274/282
Lift: .680/.680
Lobe Separation: 110 LC
Included Lifters: 91118 Direct Lube Mech. Flat Tappet
4400-7800.  Drag or Modified. Best in big cubic inch. Aggressive upper rpm. 12.5:1+ CR.