AFR 165cc SBF Street Cylinder Head
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The Small Port, High Velocity, Emission Legal Torque
Monster
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 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
volumes of 58cc and 68cc, 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. 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. (see footnotes here) |
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165cc SBF Street Cylinder Head Flow Chart
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165cc SBF Competition Package Cylinder Head Flow Chart
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165cc SBF Street Head Part Numbers
CNC Ported Pairs of Heads Complete With Parts or
Ready to Install
CNC Street Ported Cylinder Heads |
Description |
Part Number |
| 165cc Street Heads, Stud, 58cc |
1402* |
| 165cc Street Heads, Pedestal, 60cc |
1472* |
CNC Competition Package Street Porting |
Description |
Part Number |
| 165cc Street Heads, Stud, 58cc |
1404 |
Stage 1- Bare Heads No Porting or
Parts |
Description |
Part Number |
| 140cc Street Heads, Stud, 55cc |
140* |
| 140cc Street Heads, Pedestal, 55cc |
147* |
Stage 1 Bare Heads (no parts or porting) are available.
*Only models with heat riser (marked by an asterisk)
are emissions legal, all others are not legal for sale or use on
pollution controlled motor vehicles in the United States.
| Basic Package Components |
Part # |
100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
Competition 3-angle Valve Job |
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| Intake Valve, 1.900" stud mount |
AFR #7249 |
| Exhaust Valve, 1.600" stud mount, 58cc |
AFR #7250 |
| Intake Valve, 1.900 Pedestal |
AFR #7201 |
| Exhaust Valve, 1.600 Pedestal |
AFR#7226 |
1.290" OD Hydraulic Dual Valve Spring,
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AFR #8017 |
| 135 lbs on seat, .600" maximum lift (upgrades available) |
Comp Pkg #8019 |
| 7° Chrome Moly Retainers |
AFR #8514 |
| 7° Valve Locks |
AFR #9007 |
| 3/8" Rocker Studs |
AFR #6401 |
| 5/16" Guide Plates |
AFR #6107 |
| Valve Seals |
AFR #6612 |
| Hardened Shims |
AFR #8042 |
| Intake Vavle Seats |
AFR #9059 |
| Exhaust Vavle Seats |
AFR #9069 |
| Bronze Valve Guides |
AFR #9051 |
| Thermactor Air Injector |
AFR #6226 |
Special orders available upon request.
| 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 and Studs |
Standard ARP, AFR #6323 & #6322 |
| Head Bolt Washers |
Manley, AFR #6320 |
| Stud Girdle |
AFR #6207 |
| 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 |
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| Valve Spacing |
Standard |
| Rocker Arms |
Standard, will not accept rail rocker arms |
| 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 Fel-Pro gasket as it does not precisely fit AFR heads.
Note: Milling head deck will affect flow numbers.
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