Chevrolet W-Series 348-409 1958-1965
Adv. Duration: 280/288
Duration @ .050": 227/235
Lift: .571/.571

Lobe Separation: 109 LC

Includes Lifters: Yes, 91364, Street Retro-Fit Hyd. Roller Lifters

1500-5400. Rattler™, Choppy idle, high performance street, stock converter ok, best with 1800+ and gears.

Chevrolet W-Series 348-409 1958-1965
Adv. Duration: 288/296
Duration @ .050": 235/243
Lift: .618/.618

Lobe Separation: 109 LC

Includes Lifters: Yes, 91364, Street Retro-Fit Hyd. Roller Lifters

1800-5600. Big Mama Rattler™, Lopey idle. Street or street/strip. Needs 9.0:1 compression, 2500+ stall.

Chevrolet W-Series 348-409 1958-1965
Adv. Duration: 296/304
Duration @ .050": 243/251
Lift: .618/.600

Lobe Separation: 109 LC

Includes Lifters: Yes, 91364, Street Retro-Fit Hyd. Roller Lifters

2400-6000. Big Daddy Rattler™, Rough idle. Pro street or street/strip. Needs 9.5:1 compression, 2800+.