287 301 316 341 350 370 389 400 421 455

Pontiac - 287, 301, 316, 341, 350, 370, 389, 400, 421 & 455
Performance level 5 - Ultra-Action - Radical mid-range cam, shifts at 6500 rpm with a redline of 7000.
INT/EXH - Dur @ .050” Lift: 247°/254° RR: 1.5/1.5 Gross Lift: .582”/.567” LSA: 108° RPM: 4000 to 7000 Redline: 7500 Learn More

Pontiac - 287, 301, 316, 341, 350, 370, 389, 400, 421 & 455
Performance level 3 - Torque Beast - Delivers impressive midrange and top end power. Healthy sound. Economical price.
INT/EXH - Dur @ .050” Lift: 214°/224° RR: 1.5/1.5 Gross Lift: .444”/.467” LSA: 112° RPM: 1750 to 4500 Redline: 5000 Learn More

Pontiac - 287, 301, 316, 341, 350, 370, 389, 400, 421 & 455
Performance level 4 - Ultra Beast - Hot street profile that delivers impressive mid-range and top end power.
INT/EXH - Dur @ .050” Lift: 231°/240° RR: 1.5/1.5 Gross Lift: .470”/.470” LSA: 112° RPM: 2000 to 4800 Redline: 5300 Learn More