AFR 1388/1387 SBF 185/58 OR 72CC .600 LIFT ASSEMBLED YOUR CHOICE OF CHAMBER SIZE
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 Click part # to add product to your cart 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 600Bore 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.