Buick 400-430-455 1967-1976
Adv. Duration: 269/269
Duration @ .050": 215/215
Lift: .475/.475
Lobe Separation: 112 LC
Includes Lifters: Yes, 91311
1000-5000. Good idle, mild street performance, strong low end torque.
Adv. Duration: 259/269
Duration @ .050": 205/215
Lift: .448/.474
1000-5000. Street Force 1, Good idle, mild street performance, strong low end torque.
Adv. Duration: 269/279
Duration @ .050": 215/225
Lift: .474/.496
1200-5200. Street Force 2, Good idle and throttle response. Needs 4 barrel and good exhaust.
Adv. Duration: 275/275
Duration @ .050": 221/221
Lift: .501/.501
Lobe Separation: 108 LC
1200-5200. Fair idle, performance street, strong torque curve.
Adv. Duration: 279/285
Duration @ .050": 225/231
Lift: .496/.501
Lobe Separation: 110 LC
1500-5500. Fair idle, hot street, needs modified intake and exhaust.
Adv. Duration: 294/301
Duration @ .050": 241/247
Lift: .536/.544
2400-6400. Rough idle, street/strip, needs 2500+ stall, aftermarket intake and headers.
