Site Information

 Loading... Please wait...

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 Aluminum SBC Vortec Cylinder Heads
Part # Plug Type Combustion Chamber
0912 Straight 65cc

Click part # to add product to your cart

190cc Street Head Flow Chart
  .200 .300 .400 .500 .550
Int 135 213 253 276 279
Exh 110 158 190 207 211

Test conducted at 28" of water (pressure) on Superflow 600
Bore Size: 4.060", 3/4" radius plate exhaust, 1 3/4" 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, 2.020" x 4.900" Overall Valve Length
8mm Bead Lock Exhaust Valve, 1.600" x 4.950" Overall Valve Length
PAC Racing Spring 1.290" OD Hydraulic Roller Dual Valve Spring,
140 lbs on seat, .600" maximum lift, Max RPM 6300-6500(upgrades available)
Manley 7° Chrome Moly Retainers 1.245" O.D x .885" I.D x .655" I.D
7° Bead Lock Valve Keepers
ARP 3/8" Rocker Studs
Adjustable 5/16" Guide Plates
Viton Valve Seals .600" O.D x .495" I.D
Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D
Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep
Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep
8 mm Bronze Valve Guides .502" O.D x 2.100" O.A.L
Specifications & Features:
A356 Aluminum
Intake Port Volume
Intake Port Dimension
2.320" H x 1.297" W x 3/8&deg Radius
Intake Port Location
Exhaust Port Volume
Exhaust Port Dimension
1.450" H x 1.550" W
Exhaust Port Location
.100" Raised
Combustion Chamber Size
Valve Cover Bolt Pattern
Center & Perimeter Bolt
Valve Angle
Valve Spring Pocket Diameter
1.460" O.D
Max Valve Spring Pocket Machining
1.750" O.D
Warning: Do not machine spring pad any deeper.
Deck Thickness
Minimum Bore Diameter
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
2.070 sq. in.
Spark Plug Dimensions
14mm x .750" w/Gasket Seat