Air Flow Research 265 Oval Port "Magnum" BBC 24°
AFR’s Torque Monster
The AFR 265cc Oval Port Magnum big block Chevrolet 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 .650" 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 Chambers
40% CNC Ported Exhaust Ports (eg. Bowl Blend)
80% CNC Ported Intake Ports (eg. Bowl Blend)
Competition 5-Angle Valve Job
Intake 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 Retainers
ARP 7/16'' Rocker Studs
Adjustable 3/8'' Push Rod Guide Plates
Viton Valve Seals
Bronze Valve Guides
NOTE: 1" longer head bolts needed on four bottom exhaust bolt holes.
PART NUMBER: AFR-3610-1
