Oldsmobile 39° V8 400-455 1967-1990
Adv. Duration: 272/282
Duration @ .050": 219/229
Lift: .523/.512

Lobe Separation: 110 LC
Included Lifters: 91464 Hyd. Roller
1600-5400. 4/7 Swap, Good idle, Street, broad low to mid-range performance.

Oldsmobile 39 Deg. 400-455 1967-1990
Adv. Duration: 278/282
Duration @ .050": 225/229
Lift: .560/.555

Lobe Separation: 110 LC
Included Lifters: 91464 Hyd. Roller
1800-5600. 4/7 Swap, Fair idle, Performance Street, broad usable power range.

Oldsmobile 39 Deg. V8 400-455 1967-1990
Adv. Duration: 286/286
Duration @ .050": 233/233
Lift: .549/.549

Lobe Separation: 110 LC
Included Lifters: 91464 Hyd. Roller
2000-5800. 4/7 Swap, Choppy idle, strong low & mid-range performance. 2500+ stall.

Oldsmobile 39° V8 400-455 1967-1990
Adv. Duration: 288/294
Duration @ .050": 235/241
Lift: .581/.581

Lobe Separation: 110 LC
Included Lifters: 91464 Hyd. Roller
2200-6600. 4/7 Swap, Rough idle, strong mid-range torque & horsepower.