Chevrolet Small Block
Advertised Duration: 287/299
Duration @ .050": 252/261
Valve Lift w/1.73 Rockers: .530/.525
Lobe Separation Angle: 106
Intake Centerline: 102
Included Lifters: 91118 Direct Lube Mech. Flat Tappet
3000-6800. Best on 3/8 to 1/2 mile fast tracks. Super mid & upper RPM cam.

Chevrolet Small Block
Adv. Duration: 287/299
Duration @ .050": 252/264
Lift: .545/.555
Lobe Separation: 106 LC
Included Lifters: 91115 Mechanical Flat Tappet
3000-7000. Best on fast 1/4 to 3/8 mile. Larger cubic inch 383+ recommended. 11.0:1+.

Chevrolet Small Block
Adv. Duration: 287/299
Duration @ .050": 252/264
Lift: .545/.555
Lobe Separation: 106 LC
Included Lifters: 91118 Direct Lube Mech. Flat Tappet
3000-7000. Best on fast 1/4 to 3/8 mile. Larger cubic inch 383+ recommended. 11.0:1+.

Chevrolet Small Block
Adv. Duration: 289/285
Duration @ .050": 254/250
Lift: .550/.525
Lobe Separation: 106 LC
Included Lifters: 91115 Mechanical Flat Tappet
3200-7000. Oval Track with 2bbl. carb. 1/4-3/8 banked track. Needs 9.5:1+ CR, good exhaust.

Chevrolet Small Block
Adv. Duration: 289/285
Duration @ .050": 254/250
Lift: .550/.525
Lobe Separation: 106 LC
Included Lifters: 91118 Direct Lube Mech. Flat Tappet
3200-7000. Oval Track with 2bbl. carb. 1/4-3/8 banked track. Needs 9.5:1+ CR, good exhaust.

Chevrolet Small Block
Adv. Duration: 294/294
Duration @ .050": 254/254
Lift: .485/.485
Lobe Separation: 114 LC
Included Lifters: 91115 Mech. Flat Tappet
3800-7000. American Muscle. Rough idle, near duplicate of the famous Duntov 30-30 cam (GM #3849346).

Chevrolet Small Block
Adv. Duration: 294/294
Duration @ .050": 254/254
Lift: .485/.485
Lobe Separation: 114 LC
Included Lifters: 91118 Direct Lube Mech. Flat Tappet
3800-7000. American Muscle. Rough idle, near duplicate of the famous Duntov 30-30 cam (GM #3849346).

Chevrolet Small Block
Advertised Duration: 283/289
Duration @ .050": 254/260
Valve Lift w/1.50 Rockers: .515/.515
Lobe Separation Angle: 106
Included Lifters:  91115 Mech. Flat Tappet
3200-7200. Late model stock, best on 3/8 to 1/2 mile asphalt tracks with limited intake.

Chevrolet Small Block
Adv. Duration: 291/299
Duration @ .050": 256/264
Lift: .536/.555
Lobe Separation: 105 LC
Included Lifters: 91115 Mech. Flat Tappet
3000-7400. Rough idle, works well in pro-street or heavy bracket car.

Chevrolet Small Block
Adv. Duration: 291/299
Duration @ .050": 256/264
Lift: .510/.510
Lobe Separation: 105 LC
Included Lifters: 91118 Direct Lube Mech. Flat Tappet
3000-7400. Rough idle, works well in pro-street or heavy bracket car.