Mechanical Flat Tappet

Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
Performance level - High Rocker RatioINT/EXH - Dur @ .050” Lift: 264°/268° RR: 1.6/1.5 Gross Lift: .597”/.570” LSA: 106° RPM: 3450 to 7450 Redline: 7950 Learn More

Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
Performance level 3 - Pro-Street - High torque at low revs. Lopey idle.
INT/EXH - Dur @ .050” Lift: 230°/236° RR: 1.5/1.5 Gross Lift: .458”/.468” LSA: 112° RPM: 2000 to 6000 Redline: 6500 With Small Base Circle

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Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
Performance level 4 - Compu-Pro - Broad power band. Short oval profile. Heavy car.
INT/EXH - Dur @ .050” Lift: 238°/244° RR: 1.5/1.5 Gross Lift: .497”/.503” LSA: 107° RPM: 2000 to 6000 Redline: 7000 Learn More

Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
Performance level 5 - Compu-Pro - Most popular NASCAR and Sportsman grind. Great high torque and mid-range power.
INT/EXH - Dur @ .050” Lift: 254°/262° RR: 1.5/1.5 Gross Lift: .525”/.546” LSA: 105° RPM: 3000 to 7000 Redline: 7500 Learn More

Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
Performance level 5 - Compu-Pro - Most popular NASCAR and Sportsman grind. Great high torque and mid-range power.
INT/EXH - Dur @ .050” Lift: 254°/262° RR: 1.5/1.5 Gross Lift: .525”/.546” LSA: 105° RPM: 3000 to 7000 Redline: 7500 Learn More

Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
Performance level 5 - Compu-Pro - Super drag or big, 1⁄2 mile oval track grind. Low gear, heavy car.
INT/EXH - Dur @ .050” Lift: 262°/266° RR: 1.5/1.5 Gross Lift: .543”/.557” LSA: 105° RPM: 3750 to 7500 Redline: 7500 Learn More

Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
Performance level 5 - Compu-Pro - Super drag or big, 1⁄2 mile oval track grind. Low gear, heavy car.
INT/EXH - Dur @ .050” Lift: 262°/266° RR: 1.5/1.5 Gross Lift: .543”/.557” LSA: 105° RPM: 3750 to 7500 Redline: 7500 Learn More

Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
Performance level 5 - Compu-Pro - Top end profile for added punch above 7000 rpm. Top end drag and super speedway oval grind.
INT/EXH - Dur @ .050” Lift: 272°/278° RR: 1.5/1.5 Gross Lift: .575”/.588” LSA: 107° RPM: 4500 to 7500 Redline: 7500 Learn More

Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
Performance level 5 - Compu-Pro - Top end profile for added punch above 7000 rpm. Top end drag and super speedway oval grind.
INT/EXH - Dur @ .050” Lift: 272°/278° RR: 1.5/1.5 Gross Lift: .575”/.588” LSA: 107° RPM: 4500 to 7500 Redline: 7500 Learn More

Chevrolet - 262, 267, 283, 302, 305, 307, 327, 350 & 400
Performance level 5 - Compu-Pro - High torque, short oval track cam. Strong off corner.
INT/EXH - Dur @ .050” Lift: 244°/250° RR: 1.5/1.5 Gross Lift: .503”/.518” LSA: 105° RPM: 2500 to 6500 Redline: 7500 Learn More