DIAMOND MODERN HEMI STREET/STRIP FLAT TOP & DISH • Designed for the Modern 5.7L/6.1L Hemi • Ratios figured for .010" deck @ 9.250" • Standard 1.5mm x 1.5mm x 3.0mm ring package • Premium 4130 wrist pins included • Double Spirolocks • Top ring down - .260 • Valve relief depth = .175" intake • Can be used with forced induction or small nitrous kits