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.