AFR 185cc SBF "Renegade" Street/Strip Cylinder Head

No heat riser or air pump holes for maximum street/strip performance

Our new "Renegade" Ford heads are a reengineered ground up redesign to our already formidable and proven 20° heads. These heads come ready for the maximum street/strip Small Block Ford performance possible. AFR’s 185cc sport lightweight 8mm 2.020 intake and 1.600 exhaust valves with options for either 58cc or 72cc combustion chambers and 70cc exhaust ports. With AFR’s 3/4” thick head deck, it’s no problem handling that additional cylinder pressure. Each head is also drilled for the larger 1/2” head bolt for maximum head gasket retention as a standard feature of this serious race piece in street disguise.

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 #8605, 1.270 O.D. with higher spring pressures to reduce chances of valve float associated with rpm's 6200 or higher. (see footnotes here)

185cc SBF Flow Chart

Tested on 4.060 Bore

185cc SBF Aluminum Cylinder Head Flow Chart



Basic Package Components
100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
Competition 5-angle Valve Job
AFR #7251 Bead Lock Intake Valve, 2.020" x 4.903" Overall Valve Length
AFR #7250 Bead Lock Exhaust Valve, 1.600" x 4.955" Overall Valve Length
AFR #8017 PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring, 135 lbs on seat, .600" maximum lift, Max RPM 6300-6500
AFR #8514 Manley 7° Chrome Moly Retainers
AFR #9007 7° Bead Lock Valve Keepers
AFR #6410 3/8" Rocker Studs
AFR #6103 Adjustable 5/16" Guide Plates
AFR #6612 Viton Valve Seals
AFR #8042 Hardened Spring Cup
AFR #9058 Intake Valve Seats
AFR #9069 Exhaust Valve Seats
AFR #9051 Bronze Valve Guides



Specifications, Features, and Optional Supporting Components
100 ft. lbs with 1/2" stud Head Torque w/ Moly Lube
55 ft. lbs Rocker Stud Torque
25-30 ft lbs. Rocker Pedestal Torque
AFR #6832 Intake Port Gasket, 1.280" x 2.100" w/ 3/8" radius, Fel-Pro #1262
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, Fel-Pro #1011-1
AFR #6318 SB Ford 1/2" Bolt Head Bolt Kit, ARP #154-3603
AFR #6317 SB Ford 1/2" Bolt Head Stud Kit, ARP #254-4503
AFR #6320 Head Bolt Washers, Manley
AFR #6324 Head Bolt Bushings, 1/2"-7/16", Standard ARP
AFR #6207 Stud Girdle
RPM Performer Suggested Manifold
Victor Jr. Suggested Manifold
Autolite 3924 Spark Plug Starting Range
58cc or 72cc Combustion Chambers
Can be cut to 1.625, no deeper Spring Pocket
Standard Valve Spacing
Standard, will not accept rail rocker arms Rocker Arms
Standard Valve Angle
.008" per cc Angle Mill (10cc Maximum Optional Mill)
.006" per cc Flat Mill (4cc Maximum Optional Mill)
 Model      Product Name   Price   Buy Now 
 1387   SBF 185cc, No EGR or Air Pump, Strip Head, 72cc chambers, Stud Mount, complete w/parts   SBF 185cc, No EGR or Air Pump, Strip Head, 72cc chambers, Stud Mount, complete w/parts   $1,618.00  Buy Now 
 1388   SBF 185cc, No EGR or Air Pump, Strip Head, 58cc chambers, Stud Mount, complete w/parts   SBF 185cc, No EGR or Air Pump, Strip Head, 58cc chambers, Stud Mount, complete w/parts   $1,618.00  Buy Now 
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Air Flow Research | 28611 W. Industry Drive | Valencia, CA 91355 | 661-257-8124

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