AFR 265 BBC "As Cast" Oval Port Magnum Heads

Air Flow Research 265 Oval Port "Magnum" BBC 24° AFR’s Torque Monster AFR 265cc Oval Port Magnum BBC cylinder heads are designed to be used on engine displacement up to 468 cubic inches operating at or below 6,200 RPM, providing tons of bottom-end torque, tremendous throttle response, and great all-around power. This torque monster is capable of flowing 354 cfm at 0.650 in. lift, and is recommended for street, strip, and towing applications. These units feature a 3/4" thick deck, reinforced rocker stud bosses and thick, rugged castings. Big Block Chevy 265cc Oval Port 24° Magnum Basic Package Components: 50% CNC Ported Combustion Chambers40% CNC Ported Exhaust Ports (eg. Bowl Blend)80% CNC Ported Intake Ports (eg. Bowl Blend)Competition 5-Angle Valve JobIntake Valve: 2.190'' x 5.460''Exhaust Valve: 1.880'' x 5.448''1.550'' OD Hydraulic Roller Dual Valve Spring 170# on seat, 473# at .600'' maximum lift Max RPM 6300-6500 Chromemoly RetainersARP 7/16'' Rocker StudsAdjustable 3/8'' Pus