Rockers

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 - 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 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

Buick - 400, 430 & 455
Performance level 4 - Compu-Pro - High torque, all purpose profile.
INT/EXH - Dur @ .050” Lift: 238°/242° RR: 1.6/1.6 Gross Lift: .482”/.488” LSA: 108° RPM: 2500 to 6000 Redline: 6500 Learn More

Land Rover - 3.9L 4.0L 4.6L V8 (Short Nose)
Performance level 2 - Performance Level 2 for 340 Cubic Inch Displacement Engine-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: 202°/210° RR: 1.6/1.6 Gross Lift: .446”/.451” LSA: 112° RPM: 1500 to 4000 Redline: 4500 Learn More

Land Rover - 3.9L 4.0L 4.6L V8 (Short Nose)
Performance level 2 - Performance Level 2 for 300 Cubic Inch Displacement Engine-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: 196°/202° RR: 1.6/1.6 Gross Lift: .430”/.446” LSA: 112° RPM: 1500 to 4000 Redline: 4500 Learn More

Land Rover - 3.9L 4.0L 4.6L V8 (Short Nose)
Performance level 1 - Performance Level 1 for 300 Cubic Inch Displacement Engine-Power Compu-Pro - Enhances throttle responce and low end torque while delivering efficient drivability.
INT/EXH - Dur @ .050” Lift: 184°/190° RR: 1.6/1.6 Gross Lift: .402”/.421” LSA: 112° RPM: Idle to 3500 Redline: 4500 plus

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Land Rover - 3.9L 4.0L 4.6L V8 (Short Nose)
Performance level 1 - Performance Level 1 for 340 Cubic Inch Displacement Engine-Power Compu-Pro - Enhances throttle responce and low end torque while delivering efficient drivability.
INT/EXH - Dur @ .050” Lift: 192°/196° RR: 1.6/1.6 Gross Lift: .424”/.430” LSA: 112° RPM: Idle to 3500 Redline: 4500 plus

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