190cc SBC "Eliminator" Vortec 23° Street Head

The Small Port, High Velocity Torque Monster

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 here.

190cc Vortec Street Head Flow Chart

Tested on 4.060 Bore




Included Components
100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
Competition 5-angle Valve Job
AFR #7251 8mm Bead Lock Intake Valve, 2.020" x 4.900" Overall Valve Length
AFR #7250 8mm Bead Lock Exhaust Valve, 1.600" x 4.950" Overall Valve Length
AFR #8017 PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring,
140 lbs on seat, .600" maximum lift, Max RPM 6300-6500(upgrades available)
AFR #8514 Manley 7° Chrome Moly Retainers 1.245" O.D x .885" I.D x .655" I.D
AFR #9007 7° Bead Lock Valve Keepers
AFR #6409 ARP 3/8" Rocker Studs
AFR #6103 Adjustable 5/16" Guide Plates
AFR #6612 Viton Valve Seals .600" O.D x .495" I.D
AFR #8042 Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D
AFR #9060 Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x.375" Deep
AFR #9070 Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep
AFR #9051 8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L



Specifications & Features:
A356 Aluminum Material
190cc Intake Port Volume
2.320" H x 1.297" W 3/8 Radius Intake Port Dimension
Stock Intake Port Location
64cc Exhaust Port Volume
1.450" H x 1.550" W Exhaust Port Dimension
.100" Raised Exhaust Port Location
65cc Combustion Chamber Size
Center & Perimeter Bolt Valve Cover Bolt Pattern
23° Valve Angle
1.460" O.D Valve Spring Pocket Diameter
1.750" O.D Max Valve Spring Pocket Machining
Warning: Do not machine spring pad any deeper.
.750" Deck Thickness
4.000" Minimum Bore Diameter
.006" per cc 60cc Maximum Flat Mill
.009" per cc 55cc Maximum Angle Mill
2.070 sq. in. Minimum Cross Sectional Area
14mm x .750" w/Gasket Seat Spark Plug Dimensions

Note: Angle mills might require .120" Thick intake gasket.


Recommended Components:
GM Vortec Intake Port Gasket
Important: Do not port match your intake manifold to GM gasket as it does not precisely fit AFR heads.
AFR #6834 Exhaust Port Gasket, Fel-Pro #1404
AFR #6803 Head Gasket, 350cid Fel-Pro #1003
AFR #6310 SB Chevy Head Bolt Kit, ARP #134-3701
AFR #6305 SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301
AFR #6320 Head Bolt Washers, Manley
AFR #6200 Stud Girdle GM L98
GM or Aftermarket Vortec Suggested Manifold
Autolite 3924 Spark Plug Starting Range

 Model      Product Name   Price   Buy Now 
 912   SBC 190cc Street Vortec Heads, straight plug, 65cc, complete w/parts   SBC 190cc Street Vortec Heads, straight plug, 65cc, complete w/parts   $1,720.00  Buy Now 
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Air Flow Research | 28611 W. Industry Drive | Valencia, CA 91355 | 661-257-8124

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