Afr Chevy 200cc Enforcer As-Cast Sbc Cylinder Head, 69cc Chambers, Straight Plug, Assembled - Flat Tappet Springs

AFR is proud to announce the release of its NEW Enforcer series of As-Cast cylinder head. Comprised of four new budget-friendly cylinder head, this price conscience offerings come fully assembled and use the same high-quality components found in their higher-end CNC ported cylinder head, such as ARP rockers studs, .550 lift hydraulic flat tappet springs, Viton valve seals, hardened spring cups, ductile Iron seats, AFR adjustable guide plates, and their Stainless Steel valves. The head is made from a permanent mold casting that comes with As-Cast surfaces on the intake runners, exhaust runners, and combustion chambers. This head is a perfect choice for anyone looking to upgrade to an aluminum head with modern port designs for their muscle car or street rod. Sold as a single piece, 2 pieces required per engine. Steam holes pre-drilled on these heads. Will work on any SBC block including 350 and 400.
AFR's 200cc SBC Enforcer Cylinder head feature a Permanent Mold “As-Cast” Technology surfaces on the intake runners, exhaust runners and combustion chambers that allows for extremely accurate and repeatable port location/performance. This budget friendly head is perfect for your 350 to 400 Cubic Inch operating below 6000 RPM. 200cc As Cast Flow Chart   .200 .300 .400 .500 .550 .600 Int 138 192 233 260 265 N/A Exh 108 142 170 195 200 N/A Test conducted at 28" of water (pressure) on Superflow 600
Bore Size: 4.060", 3/4" radius plate exhaust, 1 3/4" curved pipe Basic Package Components Part # As-Cast Combustion Chambers
As-Cast Exhaust Ports
As-Cast Intake Ports
3-angle Valve Job   8mm Stainless Steel 2.050 x 4.900 O.A.L. Race Intake Valve AFR #7252 8mm Stainless Steel 1.600 X 4.950 O.A.L. Race Exhaust Valve AFR #7250 AFR 1.437" OD Hydraulic Flat Tappet Dual Valve Spring, 125 lbs on seat, .550" maximum lift, Max RPM 6100-6300 AFR #8020 7° Chrome Moly 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 8mm LS Enforcer Viton Valve Seals .620" O.D x .490" I.D AFR #6615 Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D AFR #8042
Specifications, Features, and Optional Supporting Components Head Material A356 Aluminum Intake Port Volume 200cc Intake Port Dimension 2.080" H x 1.270" x 5/16 Radius Intake Port Location Stock Exhaust Port Volume 74cc Exhaust Port Dimension 1.450" H x 1.550" W Exhaust Port Location Stock Combustion Chamber Size 69cc Valve Cover Bolt Pattern Perimeter Bolt Valve Angle 23° Valve Spring Pocket Diameter 1.437" O.D Max Valve Spring Pocket Machining 1.580" O.D Warning: Do not machine spring pad any deeper.   Deck Thickness .470" Spark Plug Dimensions 14mm x .750" w/Gasket Seat Intake Port Gasket AFR #6900 Exhaust Port Gasket AFR #6905 Head Gasket, 350cid Fel-Pro #1003 AFR #6800 Head Gasket, 400cid Fel-Pro #1014 AFR #6802 SB Chevy Head Bolt Kit, ARP #134-3701 AFR #6310 SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301 AFR #6305 Head Bolt Washers, Manley AFR #6320 Suggested Manifold AFR #4810 Suggested Manifold AFR #4812 Suggested Manifold RPM Performer or Vic Jr. Flat Mill .006" per cc 56cc Maximum Spark Plug Starting Range Autolite 3924 Important: Do not port match your intake manifold to any Fel-Pro gasket as it does not precisely match an AFR head.
Note: Milling head deck will affect flow numbers.
These heads are perimeter bolt only, no option for center bolt. The heads have the 86' and older bolt pattern and the Vortec bolt pattern, but only the 86' and older intakes will work due to the port dimensions. The Vortec is a taller port and won't match.