CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.
AFR's 185cc "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.
| 185cc Aluminum SBF Cylinder Heads | ||
|---|---|---|
| Part # | Rocker Type | Combustion Chamber |
| 1422 | Stud Mount - Emissions Legal | 58cc |
| 1420 | Stud Mount - Emissions Legal | 72cc |
| 1492 | Pedestal Mount - Emissions Legal | 58cc |
| 1388 | Stud Mount - Non-Emissions Legal | 58cc |
| 1387 | Stud Mount - Non-Emissions Legal | 72cc |
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| 185cc Street Head Flow Chart | ||||||
| .200 | .300 | .400 | .500 | .550 | .600 | |
| Int | 142 | 200 | 255 | 285 | 295 | 297 |
| Exh | 118 | 164 | 200 | 210 | 213 | 215 |
Test conducted at 28" of water (pressure) on Superflow 600
Bore Size: 4.060", 3/4" radius plate exhaust, 1 3/4" curved pipe
| 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. |
7251
|
| 8mm Bead Lock Exhaust Valve 1.600" x 4.950" O.A.L. |
7250
|
| Pedastal 8mm Bead Lock Intake Valve 2.020" x 5.080" O.A.L |
7263
|
| Pedastal 8mm Bead Lock Exhaust Valve 1.600" x 5.100" O.A.L |
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) |
8017
|
| 7° Manley Steel Retainers 1.245" O.D x .885" I.D x .655" I.D |
8514
|
| 7° Bead Lock Valve Keepers |
9007
|
| ARP 3/8" Rocker Studs |
6409
|
| Adjustable 5/16" Guide Plates |
6103
|
| Viton Valve Seals .600" O.D x .495" I.D |
6612
|
| Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D |
8042
|
| Ductile Iron Intake Valve Seats 2.131" O.D x 1.680" I.D x .375" Deep |
9059
|
| Ductile Iron Exhaust Valve Seats 1.650" O.D x 1.350" I.D x .375" Deep |
9069
|
| 8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L |
9051
|
| Thermactor Air Injector Reducer Bushing (5/8"-11 x 7/16"-14) |
6226
|
| Recommended Components: | |
| Intake Port Gasket, Fel-Pro #1262 |
6832
|
| Important: Do not port match your intake manifold to Fel-Pro gasket as it does not precisely fit AFR heads. | |
| Exhaust Port Gasket, Fel-Pro #1415 |
6837
|
| Head Gasket, 302/351W, Fel-Pro #1011-1 |
6808
|
| SB Ford 1/2" Bolt Head Bolts, ARP #154-3603 |
6318
|
| SB Ford 1/2" Bolt Head Studs, ARP #254-4503 |
6317
|
| 1/2" Bolt - 7/16" Thread Head Bolts, 289/302W: ARP 254-3708 |
6319
|
| Head Bolt Washers, Manley |
6320
|
| Stud Girdle |
6207
|
| Suggested Manifold |
Performer or Performer RPM
|
| Spark Plug Starting Range |
Autolite 3924
|
| 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, 60cc, 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"
|
SHIPS IN THE LOWER 48 STATES FREE!
CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.
CONTACT US THE PRICE IS NEGOTIABLE BEST OFFER
Warning: May cause cancer and reproductive harm.
