AFR 1068/1067 SBC 227/65 OR 75CC .710 LIFT ASSEMBLED YOUR CHOICE OF CHAMBER SIZE
CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. AFR's 227cc "Race Ready" and "Competition" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. This head features 60/40 valve spacing and requires shaft mount rocker arms for optimum valve train geometry (can be used with .050 offset intake rockers for drag race only applications). 227cc Aluminum SBC Cylinder Heads Part # Exhaust Port Porting Finish Combustion Chamber 1067 Stock Race Ready 75cc 1068 Stock Race Ready 65cc 1120 Stock Competition 75cc 1121 Stock Competition 65cc 1074 Spread Port Race Ready 65cc 1075 Spread Port Race Ready 75cc 1124 Spread Port Competition 65cc 1125 Spread Port Competition 75cc Click part # to add product to your cart 227cc Race Ready Flow Chart .200 .300 .400 .500 .550 .600 .650 .700 Int 148 210 261 296 304 312 315 318 Exh 116 162 204 220 225 229 233 237 227cc Competition Flow Chart .200 .300 .400 .500 .550 .600 .650 .700 .750 Int 152 212 265 300 312 319 324 327 329 Exh 120 167 214 230 234 238 241 243 245 Test conducted at 28" of water (pressure) on Superflow 600Bore Size: 4.155", 3/4" radius plate exhaust, 1 7/8" 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, 2.100" x 5.000" Overall Valve Length 7256 8mm Bead Lock Exhaust Valve, 1.600" x 5.030" Overall Valve Length 7254 PAC Racing Spring 1.550" OD Solid Roller Dual Valve Spring, 220 lbs on seat, .710" maximum lift, Max RPM 7200-7400 8000 Manley 10° Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D 8511 10° Bead Lock Valve Keepers with lashcap recess 9009 ARP 7/16" Rocker Studs 6405 Adjustable 5/16" Guide Plates 6103 Viton Valve Seals .600" O.D x .495" I.D 6612 Hardened Valve Spring I.D Locator 1.550" O.D x .780" I.D 8048 Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x.375" Deep 9060 Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep 9070 8mm Bronze Valve Guides .502" O.D x 2.100" O.A.L 9051 Recommended Components: 1.5 T&D Shaft Mount w/ .450" off-set 9062 1.6 T&D Shaft Mount w/ .450" off-set 9063 1.6 Stud Mount Rocker Arms, Hardland Sharp .050 offset 6036 1.5 Stud Mount Rocker Arms, Hardland Sharp .050 offset 6035 Intake Gasket 1.280x2.090 w/ 3/8" radius, Fel-Pro #1206 6820 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 #1405 6835 Head Gasket, 350cid Fel-Pro #1003 6800 Head Gasket, 400cid Fel-Pro #1014 6802 SB Chevy Head Bolt Kit, ARP #134-3701 6310 SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301 6305 Head Bolt Washers, Manley 6320 Stud Girdle AFR Offset 6208 Suggested Manifold AFR Titan TXR #4801 Suggested Manifold AFR Titan TXS #4802 Spark Plug Starting Range Autolite 3922 Specifications & Features: Material A356 Aluminum Intake Port Volume 227cc Intake Port Dimension 2.200" H x 1.290" W 5/16 Radius Intake Port Location Stock Exhaust Port Volume 80cc Exhaust Port Dimension 1.430" H x 1.540" W Exhaust Port Location .250" Raised Combustion Chamber Size 65cc or 75cc Valve Cover Bolt Pattern Perimeter Bolt Valve Angle 23° Valve Spring Pocket Diameter 1.580" O.D Max Valve Spring Pocket Machining 1.680" O.D Warning: Do not machine spring pad any deeper. Deck Thickness .750" Minimum Bore Diameter 4.000" Flat Mill .006" per cc 60cc Maximum Angle Mill .009" per cc 55cc Maximum Note: Angle mills might require .120" Thick intake gasket. Minimum Cross Sectional Area 2.340 sq. in. Spark Plug Dimensions 14mm x .750" w/Gasket Seat Carb EO# Non Emissions Compliant 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.