Hydraulic Flat Tappet

Buick - 400, 430 & 455
Performance level 4 - Hi-Draulic Hauler - Strong mid-range to top end torque.
INT/EXH - Dur @ .050” Lift: 232°/244° RR: 1.6/1.6 Gross Lift: .507”/.526” LSA: 108° RPM: 2500 to 6000 Redline: 6500 Learn More

Buick - 400, 430 & 455
Performance level 4 - Hi-Draulic Hauler - Strong mid-range to top end power.
INT/EXH - Dur @ .050” Lift: 242°/248° RR: 1.6/1.6 Gross Lift: .531”/.560” LSA: 108° RPM: 3750 to 6250 Redline: 6500 Learn More

Buick - 400, 430 & 455
Performance level 3 - High Performance Compu-Pro - Intended for the hot street application, these cams offer extended rpm range with emphasis on upper bottom and top end power.
INT/EXH - Dur @ .050” Lift: 230°/236° RR: 1.6/1.6 Gross Lift: .514”/.525” LSA: 112° RPM: 1800 to 4500 Redline: 5000 Learn More

Buick - 400, 430 & 455
Performance level 3 - High Performance Compu-Pro - Intended for the hot street application, these cams offer extended rpm range with emphasis on upper bottom and top end power.
INT/EXH - Dur @ .050” Lift: 222°/228° RR: 1.6/1.6 Gross Lift: .488”/.499” LSA: 112° RPM: 1800 to 4500 Redline: 5000 Learn More

Buick - 400, 430 & 455
Performance level 2 - Power Compu-Pro - Perfect combination of power and mileage with extended rpm range. Strong low end and mid-range power for spirited driving on or off the road.
INT/EXH - Dur @ .050” Lift: 210°/214° RR: 1.6/1.6 Gross Lift: .464”/.488” LSA: 112° RPM: 1500 to 4000 Redline: 4500 Learn More

Buick - 400, 430 & 455
Performance level 2 - Power Compu-Pro - Perfect combination of power and mileage with extended rpm range. Strong low end and mid-range power for spirited driving on or off the road.
INT/EXH - Dur @ .050” Lift: 212°/216° RR: 1.6/1.6 Gross Lift: .475”/.487” LSA: 112° RPM: 1500 to 4000 Redline: 4500 Learn More

Buick - 400, 430 & 455
Performance level 1 - Mileage Compu-Pro - Enhances throttle response and low end torque while delivering fuel efficient drivability.
INT/EXH - Dur @ .050” Lift: 204°/210° RR: 1.6/1.6 Gross Lift: .448”/.446” LSA: 112° RPM: Idle to 3500 Redline: 4000 Learn More

Buick - 400, 430 & 455
Performance level 4 - Ultra Performance Compu-Pro - Dual purpose hot street/drag strip profile. These cams exhibit strong mid-range and top end torque and horsepower.
INT/EXH - Dur @ .050” Lift: 238°/242° RR: 1.6/1.6 Gross Lift: .538”/.536” LSA: 112° RPM: 2000 to 5000 Redline: 5500 Learn More

Buick - 400, 430 & 455
Performance level 4 - Ultra Performance Compu-Pro - Dual purpose hot street/drag strip profile. These cams exhibit strong mid-range and top end torque and horsepower.
INT/EXH - Dur @ .050” Lift: 248°/252° RR: 1.6/1.6 Gross Lift: .546”/.559” LSA: 112° RPM: 2000 to 5000 Redline: 5500 Learn More