Chrysler/Dodge/Mopar - 273, 340, 360 & 318 LA Performance level 4 - Pro-Street - High revving with superior mid-range and top end power. INT/EXH - Dur @ .050” Lift: 243°/245° RR: 1.5/1.5 Gross Lift: .521”/.528” LSA: 112° RPM: 2500 to 6500 Redline: 7000 Learn More