AFR SBF 185/58cc renegade street heads (pair)
SKU: AFR1388
$4,096.63
AFR SBF 185/58cc renegade street heads (pair)
Description
AFR’s 185cc SB Ford “Street” cylinder 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. Not compatible with OEM pistons.
| Included Components | |
| 100% CNC 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
|
| 8mm Bead Lock Exhaust Valve 1.600″ x 4.950″ O.A.L. |
AFR #7250
|
| Pedastal 8mm Bead Lock Intake Valve 2.020″ x 5.080″ O.A.L |
AFR #7263
|
| Pedastal 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, less than 235* duration, upgraded spring #8019 recommended for higher RPM & larger cams |
AFR #8017
|
| 7° Manley Steel Retainers 1.245″ O.D x .885″ I.D x .655″ I.D |
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 .600″ O.D x .495″ I.D |
AFR #6612
|
| Hardened Valve Spring O.D Locator 1.380″ O.D x .570″ I.D |
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
|
| 8 mm Bronze Valve Guides .502″ O.D x 2.100″ O.A.L |
AFR #9051
|
| Thermactor Air Injector Reducer Bushing (5/8″-11 x 7/16″-14) |
AFR #6226
|
| 185cc Street Head Flow Chart | ||||||
| .200 | .300 | .400 | .500 | .550 | .600 | |
| Int | 142 | 195 | 247 | 276 | 285 | 289 |
| Exh | 118 | 164 | 200 | 210 | 213 | 215 |
Test conducted at 28″ of water (pressure) on Superflow 1020
Bore Size: 4.060″, 3/4″ radius plate exhaust, 1 3/4″ curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
185cc
|
| Intake Port Dimension |
2.045″ H x 1.205″ W x 3/8 Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
70cc
|
| Exhaust Port Dimension |
1.355″ H x 1.360″ W
|
| Exhaust Port Location |
Stock
|
| Combustion Chamber Size |
58cc or 72cc
|
| Valve Cover Bolt Pattern |
Perimeter Bolt
|
| Valve Angle |
20°
|
| Valve Spring Pocket Diameter |
1.460″ O.D
|
| Max Valve Spring Pocket Machining |
1.625″ O.D
|
| Deck Thickness |
.750″
|
| 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)
|
| Note:Angle mills might require a .120″ Thick intake gasket. | |
| Minimum Cross Sectional Area |
2.025 sq. in.
|
| Spark Plug Dimensions |
14mm x .750″ w/Gasket Seat
|
| Head Bolt Diameter |
1/2″
|
| CARB E.O# Part #’s 1422 & 1492 |
D-250-3
|
| Recommended Components: | |
| Intake Port Gasket, Fel-Pro #1262 |
AFR #6832
|
| Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. | |
| Exhaust Port Gasket, Fel-Pro #1415 |
AFR #6837
|
| Head Gasket, 302/351W, 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
|
Additional information
| Part Number | AFR1388 |
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