Oldsmobile 39 Deg V8 260-455 1967-1990Adv Duration: 218/289Duration @ .050": 227/235Lift: .501/.501Lifters Included: No1800-5200, Rattler, choppy idle, high performance street, stock converter okay, best with 1800+ and gears.
Oldsmobile 39 Deg V8 260-455 1967-1990Adv Duration: 289/297Duration @ .050": 235/243Lift: .501/.480Lifters Included: No2000-5400, Big Mama Rattler, lopey idle, street or street/strip, needs 9.0:1 compresstion 2500+ stall.
Oldsmobile 39 Deg V8 260-455 1967-1990Adv Duration: 297/305Duration @ .050": 243/251Lift: .512/.5282400-5600, Big Daddy Rattler, rough idle, pro street or street/strip, needs 9.5:1 compression, 2800+
Oldsmobile 39 Deg V8 260-455 1967-1990Adv Duration: 280/288Duration @ .050": 235/243Lift: .560/.5651800-5200, Rattler, choppy idle, high performance street, stock converter okay, best with 1800+ and gears
Oldsmobile 39 Deg V8 260-455 1967-1990Adv Duration: 288/296Duration @ .050": 235/243Lift: .565/.5652000-5400, Big Mama Rattler, lopey idle, street or street/strip, needs 9.0:1 compression, 2500+ stall