Rockers

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 5 - Ultra-Action - Large cid camshaft (455 cid or bigger). Smashing mid-range power hit and top end performer.
INT/EXH - Dur @ .050” Lift: 257°/263° RR: 1.5/1.5 Gross Lift: .649”/.636” LSA: 108° RPM: 4500 to 7250 Redline: 7750 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