165cc SBF "Renegade" 20° Street Head

AFR`s 165cc "Street" heads are the preferred choice over re-worked factory heads. They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout, in addition these are the only AFR heads that are compatible with the OEM piston valve relief. Recommended for street, towing, or street/strip engines with displacements up to 351 cubic inches, operating up to 6000 RPM. Legal for 1995 and older emissions controlled vehicles under CARB EO #D-250-3. Component upgrade and machining options are available to customize AFR Heads to your specific build here.

165cc SBF Street Cylinder Head Flow Chart

Tested on 4.060 Bore





Basic Package Components
100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
Competition 5-angle Valve Job
AFR #7249 8mm Bead Lock Intake Valve, 1.900" x 4.900" O.A.L
AFR #7250 8mm Bead Lock Exhaust Valve, 1.600" x 4.950" O.A.L
AFR #7262 Pedestal 8mm Bead Lock Intake Valve, 1.900" x 5.080" O.A.L
AFR #7264 Pedestal 8mm Bead Lock Exhaust Valve, 1.600" x 5.100" O.A.L
AFR #8017 PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring, 140 lbs on seat, .600" maximum lift, Max RPM 6300-6500 (upgrades available)
AFR #8514 7° Manley Steel Retainers 1.245" O.D x .885" I.D x .655" I.D
AFR #9007 7° Bead Lock Valve Keepers
AFR #6409 ARP 3/8" Rocker Studs
AFR #6103 Adjustable 5/16" Guide Plates
AFR #6612 Viton Valve Seals .600" O.D x .495" I.D
AFR #8042 Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D
AFR #9060 Ductile Iron Intake Valve Seats 2.131" O.D x 1.680" I.D x .375" Deep
AFR #9070 Ductile Iron Exhaust Valve Seats 1.650" O.D x 1.350" I.D x .375" Deep
AFR #9051 8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L
AFR #6226 Thermactor Air Injector Reducer Bushing (5/8"-11 x 7/16"-14)



Specifications & Features:
A356 Aluminum Material
165cc Intake Port Volume
2.060" H x 1.250" W 3/8 Radius Intake Port Dimension
Stock Intake Port Location
68cc Exhaust Port Volume
1.355" H x 1.360" W Exhaust Port Dimension
Stock Exhaust Port Location
58cc or 60cc Combustion Chamber Size
Perimeter Bolt Valve Cover Bolt Pattern
20° Valve Angle
1.460" O.D Valve Spring Pocket Diameter
1.625" O.D Max Valve Spring Pocket Machining
.750" Deck Thickness
4.000" Minimum Bore Diameter
.006" per cc 54cc Maximum Flat Mill
.009" per cc 48cc Maximum Angle Mill
Note:Angle mills might require a .120" Thick intake gasket.
1.935 sq. in. Minimum Cross Sectional Area
14mm x .750" w/Gasket Seat Spark Plug Dimensions
D-250-3 Carb EO#
7/16" Head Bolt Diameter 1402 & 1472
1/2" Head Bolt Diameter 1399

Recommended Components:
AFR #6828 Intake Port Gasket, Fel-Pro #1250
Important: Do not port match your intake manifold to Fel-Pro gasket as it does not precisely fit AFR heads.
AFR #6837 Exhaust Port Gasket, Fel-Pro #1415
AFR #6808 Head Gasket, 302/351 Windsor, Fel-Pro #1011-1
AFR #6323 SBF 7/16" Head Bolt Kit, ARP #154-3701
AFR #6322 SBF 7/16" Bolt, Head Stud Kit, ARP #254-4401
AFR #6319 1/2" Bolt - 7/16" Thread Head Bolts, ARP 254-3708
AFR #6320 Head Bolt Washer Kit, Manley
AFR #6207 Stud Girdle (AFR Specific)
Performer or Performer RPM Suggested Manifold
Autolite 3924 Spark Plug Starting Range
 Model      Product Name   Price   Buy Now 
 1399   AFR SBF 165cc, No EGR or Air Pump, Strip Head, 58cc chambers, Stud Mount, complete w/parts   AFR SBF 165cc, No EGR or Air Pump, Strip Head, 58cc chambers, Stud Mount, complete w/parts   $1,643.00  Buy Now 
 1402*   AFR SBF 165cc ,Street Heads, 58cc chambers, Stud Mount, complete w/parts   AFR SBF 165cc ,Street Heads, 58cc chambers, Stud Mount, complete w/parts   $1,643.00  Buy Now 
 1472*   AFR SBF 165cc, Street Heads, 60cc chambers, Pedestal Mount, complete w/parts   AFR SBF 165cc, Street Heads, 60cc chambers, Pedestal Mount, complete w/parts   $1,643.00  Buy Now 
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Air Flow Research | 28611 W. Industry Drive | Valencia, CA 91355 | 661-257-8124

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