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.
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 #72518mm Bead Lock Intake Valve, 2.020" x 4.900" Overall Valve Length
AFR #72508mm Bead Lock Exhaust Valve, 1.600" x 4.950" Overall Valve Length
AFR #8017PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring,
140 lbs on seat, .600" maximum lift, Max RPM 6300-6500(upgrades available)
AFR #8514Manley 7° Chrome Moly Retainers 1.245" O.D x .885" I.D x .655" I.D
AFR #90077° Bead Lock Valve Keepers
AFR #6409ARP 3/8" Rocker Studs
AFR #6103Adjustable 5/16" Guide Plates
AFR #6612Viton Valve Seals .600" O.D x .495" I.D
AFR #8042Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D
AFR #9060Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep
AFR #9070Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep
AFR #90518 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L
Specifications & Features:
A356 AluminumMaterial
190ccIntake Port Volume
2.320" H x 1.297" W x 3/8° RadiusIntake Port Dimension
StockIntake Port Location
64ccExhaust Port Volume
1.450" H x 1.550" WExhaust Port Dimension
.100" RaisedExhaust Port Location
65ccCombustion Chamber Size
Center & Perimeter BoltValve Cover Bolt Pattern
23°Valve Angle
1.460" O.DValve Spring Pocket Diameter
1.750" O.DMax Valve Spring Pocket Machining
Warning: Do not machine spring pad any deeper.
.750"Deck Thickness
4.000"Minimum Bore Diameter
.006" per cc 60cc MaximumFlat Mill
.009" per cc 55cc MaximumAngle Mill
2.070 sq. in. Minimum Cross Sectional Area
14mm x .750" w/Gasket SeatSpark Plug Dimensions
Note: Angle mills might require .120" Thick intake gasket.
Recommended Components:
GM VortecIntake Port Gasket
Important: Do not port match your intake manifold to GM gasket as it does not precisely fit AFR heads.
AFR #6834Exhaust Port Gasket, Fel-Pro #1404
AFR #6803Head Gasket, 350cid Fel-Pro #1003
AFR #6310SB Chevy Head Bolt Kit, ARP #134-3701
AFR #6305SB Chevy Head Stud Kit, 12 Point Nuts, ARP #234-4301
AFR #6320Head Bolt Washers, Manley
AFR #6200Stud Girdle GM L98
GM or Aftermarket VortecSuggested Manifold
Autolite 3924Spark Plug Starting Range