For the ultimate small block Ford street car, you’ve got to use AFR’s all new 165cc emissions legal cylinder heads. Unlike some aftermarket heads, AFR’s Ford head (CARB EO #250-3) fits all your stock components; no special parts are required! With 1.900 intake valves, 1.600” exhaust valve, and combustion chamber volumes of 58cc and 69cc exhaust ports, AFR’s new 165cc Ford head is perfect for 289 and 302 engines operating from idle to 6000 rpm. A 3/4” thick head deck makes the AFR head ideal for nitrous or blower applications. Will not accept rail rocker arms. Hardened push rods required with part number 1402. Note: 1986 5.0L must have piston notched for clearance. Note: Hydraulic roller cams typically experience valve float at 6000-6200 rpm because of their fast ramp rates. AFR suggests you upgrade your springs to AFR part #8047, 1.290 O.D. with higher spring pressures to reduce chances of valve float associated with rpm’s 6200 or higher. 
Basic Package Components100% CNC Ported Combustion Chambers 100% CNC Ported Exhaust Ports 100% CNC Ported Intake Ports Competition 3-angle Valve Job Intake Valve, 1.900” stud mount, AFR #7200 Comp PKG #7203 Exhaust Valve, 1.600” stud mount 58cc, AFR #7219 Comp PKG #7056 Exhaust Valve, 1.600” stud mount 61cc, AFR #7220 Intake Valve, 1.900 Pedestal, AFR #7201 Exhaust Valve, 1.600 Pedestal, AFR #7226 1.290” OD Hydraulic Dual Valve Spring with dampner, PN: 8017 135 lbs. on seat, .600” maximum lift (upgrades available), AFR #8017 10º Chrome Moly Retainers, AFR #8510 10º Valve Locks, AFR #9005 3/8” Rocker Studs, AFR #6410 5/16” Guide Plates, AFR #6107 Valve Seals, AFR #6611 Hardened Shims, AFR #6326 Intake Valve Seats, AFR #9059 Exhaust Valve Seats, AFR #9069 Bronze Valve Guides, AFR #9049 Special orders available upon request All Accessory Holes are Predrilled & Tapped! Specifications, Features, and Supporting ComponentsHead Torque 65-70 Ft. Lbs. with 7/16” stud Rocker Stud Torque 55-60 Ft. Lbs. Rocker Pedestal Torque 25-30 Ft. Lbs. Intake Port Gasket, 1.200”x2.000” Fel Pro #1250, AFR #6828 Exhaust Port Gasket Fel Pro #1415, AFR #6837 Head Gasket 1962-82, Fel Pro #1011-1, AFR #6808 1983-93Fel Pro #1011-2, AFR #6809 Head Bolts & Studs Standard ARP, AFR #6323 & #6322 Head Bolt Washers Manley, AFR #6320 Stud Girdle Standard Suggested Manifold RPM Performer, Performer Spark Plug Starting Range Autolite 3924 Combustion Chambers 58cc or 61cc Spring Pocket can be cut to 1.625, no deeper. Valve Spacing Standard Rocker Arms Standard, will not accept rail rocker arms Valve Angle Standard Angle Mill (10cc Maximum Mill) .008” per cc Flat Mill (4cc Maximum Mill) .006” per cc
Note: Milling head deck will affect flow numbers. |