Afr 190cc Eliminator Vortec Sbc Bare Cylinder Heads, 65cc Chambers, No Parts

AFR's 190cc Vortec "Street" heads are the preferred choice over reworked factory heads. They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for street, towing, or street/strip engines from 350-383 cubic inches, operating up to 6000 RPM. Not compatible with self-aligning rocker arms. Machining options are available to customize AFR Heads to your specific build. Note: Head comes completely bare, no parts. *Notice Pictures are for reference heads would come bare, no parts.
The Small Port, High Velocity Torque Monster! - Information below is referring to fully assembled heads.
AFR's 190cc Vortec "Street" heads are the preferred choice over reworked factory heads. They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for street, towing, or street/strip engines from 350-383 cubic inches, operating up to 6000 RPM. Not compatible with self-aligning rocker arms. Component upgrade and machining options are available to customize AFR Heads to your specific build.

Note:
Hydraulic roller cams typically experience valve float at 6000-6200 rpm because of their fast ramp rates. AFR suggests you upgrade your springs to AFR part #8019, 1.270 O.D. with higher spring pressures to reduce chances of valve float associated with rpm’s 6200 or higher, but smaller cams with less than .500 lift can rev to 6500 rpm with the included springs. Basic Package Components Part # 100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
Competition 5-angle Valve Job  
Specifications, Features, and Optional Supporting Components Head Material A356 Aluminum Intake Port Volume 190cc Intake Port Dimension 2.320" H x 1.297" W x 3/8° Radius Intake Port Location Stock Exhaust Port Volume 64cc Exhaust Port Dimension 1.450" H x 1.550" W Exhaust Port Location .100" Raised Combustion Chamber Size 65cc
Valve Cover Bolt Pattern Center & Perimeter Bolt Valve Angle 23° Valve Spring Pocket Diameter 1.460" O.D Max Valve Spring Pocket Machining 1.750" O.D Deck Thickness .750" Minimum Bore Diameter 4.000" Flat Mill .006" per cc 60cc Maximum Angle Mill .009" per cc 55cc Maximum Minimum Cross Sectional Area 2.070 sq. in. Note:Angle mills might require a .120" Thick intake gasket. Spark Plug Dimensions 14mm x .750" w/Gasket Seat Intake Port Gasket GM Vortec Exhaust Port Gasket, Fel-Pro #1404 AFR #6834 Head Gasket, 350cid Fel-Pro #1003 AFR #6803 Important: Do not port match your intake manifold to GM gasket as it does not precisely fit AFR heads.   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 Stud Girdle GM L98 AFR #6200 Suggested Manifold GM or Aftermarket Vortec Spark Plug Starting Range Autolite 3924 Important: Do not port match you intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads.
Note: Milling head deck will affect flow numbers. Angel mills might require .120" thick intake gasket.