The Small Port, High Velocity, Torque Monster!
For the ultimate small block Ford street car, you’ve got to use AFR’s all new 165cc emissions legal aluminum cylinder heads. Unlike some aftermarket heads, AFR’s Ford cylinder head (CARB EO #250-3) fits all your stock components; no special parts are required! With lightweight 8mm 1.900” intake valves, 1.600” exhaust valve, combustion chamber volume of 58cc (60cc for pedestal mount heads), and 68cc exhaust ports, AFR’s new 165cc Ford aluminum cylinder head is perfect for 289 and 302 engines operating from idle to 6000 rpm. The non-emissions 165cc aluminum cylinder heads come ready for the maximum street/strip Small Block Ford performance possible. They are not emissions legal, AFR part number 1399. They include the exact same components as the emissions legal heads, but do not have the ports for smog compliance. Performance wise the emissions legal and non-emissions heads are identical. The non-emissions have optional nitrous or blower exhaust ports featuring a 70cc ultra high flowing exhaust port. A 3/4" thick head deck makes any AFR head ideal for nitrous or blower applications, even with the standard 68cc exhaust ports. These heads will not accept shaft mount rocker arms. Hardened push rods required.

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 #8019, 1.270 O.D. with higher spring pressures to reduce chances of valve float associated with rpm’s 6200 or higher, but smaller cams with less than .500 lift can rev to 6500 rpm with the included springs.
Note: 1986 5.0L must have pistons notched for clearance.
Note: AFR 1404 Competition package head exhaust port is raised .125 over stock.

Basic Package Components	Part #
100% CNC Ported Combustion Chambers 100% CNC Ported Exhaust Ports 100% CNC Ported Intake Ports Competition 3-angle Valve Job
Bead Lock Intake Valve, 1.900"	AFR #7249
Bead Lock Exhaust Valve, 1.600"	AFR #7250
1.290" OD Hydraulic Dual Valve Spring,	AFR #8017
135 lbs on seat, .600" maximum lift (upgrades available)	Comp Pkg #8019
7° Chrome Moly Retainers	AFR #8514
7° Bead Lock Valve Keepers	AFR #9007
3/8" Rocker Studs	AFR #6410
5/16" Guide Plates	AFR #6107
Viton Valve Seals	AFR #6612
Hardened Spring Cup	AFR #8042
Intake Vavle Seats	AFR #9059
Exhaust Vavle Seats	AFR #9069
Bronze Valve Guides	AFR #9051
Thermactor Air Injector	AFR #6226

Specifications, Features, and Optional Supporting Components

Head 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" X 2.000" w/ 3/8" radius	Fel-Pro #1250, AFR #6828
Exhaust Port Gasket	Fel-Pro #1415, AFR #6837
Head Gasket	Fel-Pro #1011-1, AFR #6808
Head Bolts - ARP	Standard ARP, AFR #6323 & #6322
Head Bolt Washer, Manley	AFR #6320
Stud Girdle	AFR #6207
Suggested Manifold	RPM Performer, TFS Streetburner
Spark Plug Starting Range	Autolite 3924
Combustion Chambers	58cc or 60cc for Pedestal Mount
Spring Pocket	Can be cut to 1.750, no deeper
Valve Spacing	Standard
Rocker Arms	Standard, will not accept shaft mount
Valve Angle	Standard
Angle Mill (10cc Maximum Optional Mill)	.008" per cc
Flat Mill (4cc Maximum Optional Mill)	.006" per cc

Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers.