Big Block-BBC

Chevrolet - 366, 396, 402, 427, 454, 502 & Rodeck
Performance level 4 - Ball Nose - Rough idle, explosive mid-range to top end horsepower.
INT/EXH - Dur @ .050” Lift: 248°/256° RR: 1.7/1.7 Gross Lift: .578”/.612” LSA: 108° RPM: 2800 to 6000 Redline: 6500 Learn More

Chevrolet - 366, 396, 402, 427, 454, 502 & Rodeck
Performance level 4 - Ball Nose - Rough idle, brutal mid-range torque and horsepower.
INT/EXH - Dur @ .050” Lift: 240°/248° RR: 1.7/1.7 Gross Lift: .557”/.578” LSA: 108° RPM: 2500 to 5900 Redline: 6400 Learn More

Chevrolet - 366, 396, 402, 427, 454, 502 & Rodeck
Performance level 3 - Pro-Street - High torque mid-range and top end grind.
INT/EXH - Dur @ .050” Lift: 238°/242° RR: 1.7/1.7 Gross Lift: .510”/.515” LSA: 114° RPM: 2000 to 6000 Redline: 6400 Learn More

Chevrolet - 366, 396, 402, 427, 454, 502 & Rodeck
Performance level 3 - Pro-Street - High torque mid-range and top end grind.
INT/EXH - Dur @ .050” Lift: 244°/246° RR: 1.7/1.7 Gross Lift: .517”/.532” LSA: 114° RPM: 2000 to 6500 Redline: 7000 Learn More

Chevrolet - 366, 396, 402, 427, 454, 502 & Rodeck
Performance level 4 - Pro-Street - High revving, super mid to top end power.
INT/EXH - Dur @ .050” Lift: 252°/258° RR: 1.7/1.7 Gross Lift: .554”/.571” LSA: 114° RPM: 3000 to 7500 Redline: 7750 Learn More

Chevrolet - 366, 396, 402, 427, 454, 502 & Rodeck
Performance level 4 - Pro-Street - High revving, super mid to top end power.
INT/EXH - Dur @ .050” Lift: 246°/254° RR: 1.7/1.7 Gross Lift: .530”/.558” LSA: 114° RPM: 3000 to 7000 Redline: 7500 Learn More

Chevrolet - 366, 396, 402, 427, 454, 502 & Rodeck
Performance level - High RPMINT/EXH - Dur @ .050” Lift: 242°/251° RR: 1.7/1.7 Gross Lift: .570”/.587” LSA: 108° RPM: 2400 to 6300 Redline: 6800 Learn More

Chevrolet - 366, 396, 402, 427, 454, 502 & Rodeck
Performance level - High RPMINT/EXH - Dur @ .050” Lift: 251°/261° RR: 1.7/1.7 Gross Lift: .587”/.605” LSA: 108° RPM: 2700 to 6700 Redline: 7200 Learn More

Chevrolet - 366, 396, 402, 427, 454, 502 & Rodeck
Performance level - High RPMINT/EXH - Dur @ .050” Lift: 259°/269° RR: 1.7/1.7 Gross Lift: .605”/.621” LSA: 108° RPM: 3000 to 6900 Redline: 7400 Learn More

Chevrolet - 366, 396, 402, 427, 454, 502 & Rodeck
Performance level 5 - Compu-Pro - High torque, short oval track cam.
INT/EXH - Dur @ .050” Lift: 252°/262° RR: 1.7/1.7 Gross Lift: .601”/.620” LSA: 107° RPM: 2500 to 6500 Redline: 7500 Learn More