Hydraulic Flat Tappet

Oldsmobile - 260, 307 (5.0L,) 350 (5.7L), 400, 403, 425 & 455 (39° bank angle)
Performance level 4 - Hi-Draulic Hauler - Rough idle. Violent mid-range acceleration.
INT/EXH - Dur @ .050” Lift: 244°/249° RR: 1.6/1.6 Gross Lift: .540”/.568” LSA: 108° RPM: 3500 to 6500 Redline: 6500 Learn More

Oldsmobile - 260, 307 (5.0L,) 350 (5.7L), 400, 403, 425 & 455 (39° bank angle)
Performance level 3 - Power Beast - Delivers impressive midrange and top end power. Healthy sound. Economical price.
INT/EXH - Dur @ .050” Lift: 214°/224° RR: 1.6/1.6 Gross Lift: .474”/.498” LSA: 112° RPM: 1750 to 4500 Redline: 5000 Learn More

Oldsmobile - 260, 307 (5.0L,) 350 (5.7L), 400, 403, 425 & 455 (39° bank angle)
Performance level 2 - Baja Beast - Low to mid-range torque for daily drivability. Economical price.
INT/EXH - Dur @ .050” Lift: 204°/214° RR: 1.6/1.6 Gross Lift: .450”/.474” LSA: 112° RPM: 1500 to 4250 Redline: 4750 Learn More

Oldsmobile - 260, 307 (5.0L,) 350 (5.7L), 400, 403, 425 & 455 (39° bank angle)
Performance level 4 - Ultra Beast - Upper mid-range to top end power. Emphasis on top end.
INT/EXH - Dur @ .050” Lift: 234°/244° RR: 1.6/1.6 Gross Lift: .520”/.542” LSA: 112° RPM: 2000 to 4800 Redline: 5300 Learn More