1458 SBF 205CC Aluminum Heads Renegade 72cc Assembly

AFR's 205cc "Competition" cylinder heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for race applications and very agressive street/strip builds operating up to 7400 RPM. Maximum intake flow potential @0.750 in lift is 331 CFM. Features 100% CNC Ported Combustion Chambers. 100% CNC Ported Exhaust Ports. 100% CNC Ported Intake Ports. Competition 5-angle Valve Job. 205cc Intake Ports. Bead Lock Intake Valve, 2.080'' x 5.006'' Overall Valve Length. Bead Lock Exhaust Valve, 1.600'' x 5.024'' Overall Valve Length. PAC Racing Valve Spring: 1.550'' OD Solid Roller Dual Valve Spring, 225 lbs on seat, .710'' maximum lift. Specifications Material : A356 Aluminum. Intake Port Volume: 205cc. Exhaust Port Volume: 70cc. Exhaust Port Location: Raised .125 in. Combustion Chamber Size: 58cc or 72cc. Valve Angle: 20 degrees . Valve Spring Pocket Diameter: 1.580 in O.D. Max Valve Spring Pocket Machining: 1.625 in O.D. Deck Thickness: 0.750 in. Minimum Bore Diameter: 4 in. Flat Mill: .006 in per cc 54cc Max ( from 58cc); 68cc Max ( from 72cc). Angle Mill: .009 in per cc 48cc Max ( from 58cc); 62cc Max ( from 72cc). Minimum Cross Sectional Area: 2.165 sq. in.. Head Bolt Diameter: 0.5 in. Chamber Size: 72cc.