AFR 185cc Renegade SBF Cylinder Heads, 72cc Chambers, Non-Emissions
AFR`s 185cc "Street" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for engines from 302-393 cubic inches, operating up to 6000-6500 RPM. Legal for 1995 and older emissions controlled vehicles under CARB EO #D-250-3 (Part numbers 14xx). Not compatible with OEM pistons. Component upgrade and machining options are available to customize AFR Heads to your specific build.
Shipping: FREE continental USA ground shipping on ALL AFR Cylinder Heads
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 and #1422. High flow 2.020 valves might require aftermarket pistons notched for valve clearance.
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: Stock 86-93 5.0L must have pistons notched for clearance.
|Basic Package Components||Part #|
Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
Competition 5-angle Valve Job
|8mm Bead Lock Intake Valve 2.020" x 4.900" O.A.L.||AFR #7251|
Exhaust Valve, 1.600"
|Pedastal 8mm Bead Lock Intake Valve 2.020" x 5.080" O.A.L||AFR #7263|
|Pedestal 8mm Bead Lock Exhaust Valve, 1.600" x 5.100" O.A.L||AFR #7264|
|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 #8017|
|7° Chrome Moly Retainers||AFR #8514|
|7° Bead Lock Valve Keepers||AFR #9007|
|ARP 3/8" Rocker Studs||AFR #6409|
|Adjustable 5/16" Guide Plates||AFR #6103|
|Viton Valve Seals||AFR #6612|
|Hardened Spring Cup||AFR #8042|
|Ductile Iron Intake Valve Seats 2.131" O.D x 1.680" I.D x .375" Deep||AFR #9059|
|Ductile Iron Exhaust Valve Seats 1.650" O.D x 1.350" I.D x .375" Deep||AFR #9069|
|Bronze Valve Guides||AFR #9051|
|Thermactor Air Injector||AFR #6226|
|Specifications, Features, and Optional Supporting Components|
|Intake Port Volume||185cc|
|Intake Port Dimension||2.045" H x 1.205" W x 3/8 Radius|
Intake Port Location
|Exhaust Port Volume||70cc|
|Exhaust Port Dimension||1.355" H x 1.360" W|
|Exhaust Port Location||Stock|
|Combustion Chamber Size||72cc|
Valve Cover Bolt Pattern
|Valve Spring Pocket Diameter||1.460" O.D|
|Max Valve Spring Pocket Machining||
|Minimum Bore Diameter||4.000"|
|Flat Mill||.006" per cc 54cc Max (from 58cc); 68cc Max (from 72cc);|
|Angle Mill||.009" per cc 48cc Max (from 58cc); 62cc Max (from 72cc)|
Minimum Cross Sectional Area
|2.025 sq. in.|
|Note:Angle mills might require a .120" Thick intake gasket.|
|Spark Plug Dimensions||14mm x .750" w/Gasket Seat|
Head Bolt Diameter
|Intake Port Gasket, Fel-Pro #1262||AFR #6832
|Exhaust Port Gasket, Fel-Pro #1415||AFR #6837|
|Head Gasket, 302/351 Windsor, Fel-Pro #1011-1||AFR #6808|
|SB Ford 1/2" Bolt Head Bolts, ARP #154-3603||AFR #6318|
|SB Ford 1/2" Bolt Head Studs, ARP #254-4503||AFR #6317|
|1/2" Bolt - 7/16" Thread Head Bolts, 289/302W: ARP 254-3708||AFR #6319|
|Head Bolt Washers, Manley||AFR #6320|
|Stud Girdle||AFR #6207|
|Suggested Manifold||Performer or Performer RPM|
|Spark Plug Starting Range||Autolite 3924|
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.
- Item Requires Shipping
- 65.0 lbs.
- W12.0000” x H12.0000” x L24.0000”
- Free Basic Shipping
- This item ships in its own box.
- FREE continental USA ground shipping on ALL AFR Cylinder Heads
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