The Ultimate Bolt-On Emission Legal Street/Strip Weapon!
If you need the world´s finest street/strip small block Ford head, check out AFR´s all new 185cc intake port emissions legal (CARB EO #250-3) performance aluminum cylinder heads. With lightweight 8mm 2.020" intake valves, 1.600" exhaust valves, combustion chamber volumes of 58cc or 72cc, and 70cc exhaust ports, AFR´s new 185cc Ford cylinder heads are designed for 302-351 cid engines operating from 1500 rpm to 6500 rpm. A 3/4" thick head deck makes the AFR head ideal for nitrous or blower applications. Also available with optional nitrous or blower exhaust ports featuring 70cc ultra high flowing exhaust ports. These heads will not accept shaft mount rocker arms. Hardened pushrods required with cylinder heads #1420, #1422, #1426 and #1428. High flow 2.020 valves might require aftermarket pistons notched for valve 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 #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: AFR 1381, 1383, 1426 and 1428 Competition package head exhaust port is raised .125 over stock.
Note: Stock 86-93 5.0L must have pistons notched for clearance.

Basic Package Components	Part #
100% CNC Ported Combustion Chambers 100% CNC Ported Exhaust Ports 100% CNC Ported Intake Ports Competition 3-angle Radiused Valve Job
Bead Lock Intake Valve, 2.020"	AFR #7251
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 #9058
Exhaust Vavle Seats	AFR #9069
Bronze Valve Guides	AFR #9051
Thermactor Air Injector	AFR #6226

Specifications, Features, and Optional Supporting Components

Head Torque	100 ft. lbs with 1/2" stud
Rocker Stud Torque	55-60 ft. lbs
Rocker Pedestal Torque	25-30 ft lbs.
Intake Port Gasket, 1.250" X 2.050" w/ 3/8" radius	Fel-Pro #1262, AFR #6832
Exhaust Port Gasket	Fel-Pro #1415, AFR #6837
Head Gasket	Fel-Pro #1011-1, AFR #6808
Head Bolts - ARP	Standard ARP, AFR #6318 & #6317
Head Bolt Washer, Manley	AFR #6320
Stud Girdle	AFR #6207
Suggested Manifold	RPM Performer, TFS Track Heat
Spark Plug Starting Range	Autolite 3924
Combustion Chambers	58cc or 72cc
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.