Chevrolet W-Series 348-409 1958-1965
Adv. Duration: 266/278
Duration @ .050": 213/225
Lift: .525/.525

Lobe Separation: 112 LC

Included Lifters: 91364 Hyd. Roller

1400-5600. Good idle, street performance/daily driver. 9.0:1+ CR.

Chevrolet W-Series 348-409 1958-1965
Adv. Duration: 282/286
Duration @ .050": 229/233
Lift: .560/.572

Lobe Separation: 110 LC

Included Lifters: 91364 Hyd. Roller

1800-6000. Nice idle, performance street. Best with improved intake & exhaust, 2000+ stall.

Chevrolet W-Series 348-409 1958-1965
Adv. Duration: 286/294
Duration @ .050": 233/241
Lift: .601/.618

Lobe Separation: 112 LC

Included Lifters: 91364 Hyd. Roller

2000-6400. Fair idle, hot street rod/strip. 10.0:1+, good intake & exhaust, 2400+ stall.