Product Description
AFR 190cc Vortec SBC “Eliminator” Street Cylinder Head
The Small Port, High Velocity Torque Monster
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The AFR Vortec Emissions Legal (CARB EO #D-250-2), 190cc intake port small block Chevy cylinder heads are available in a straight plug version. They feature a 65cc combustion chamber with a 64cc exhaust port and 3/4” thick head deck (ideal for nitrous or blower applications.) Standard valves are lightweight 8mm 2.020 intake and 1.600 exhaust with AFR’s hardened ductile iron interlocking valve seats. The exceptional flow characteristics, ideal operating range of idle to 5500rpm (higher rpm ranges possible depending on combination of parts), 23° valve angle, and standard valve spacing make this the perfect street head for 350cid engines from 1996-2000. No special parts are required. Center bolt valve cover is available as a machine option. Exhaust port and bolt pattern are raised 3/32″ over GM L98 Heads, this rarely affects header or chassis fitment.
Note:
Hydraulic roller cams typically experience valve float at 6200-6400 rpm because of their fast ramp rates. AFR suggests you upgrade your springs to AFR part #8605, 1.270 O.D. with higher spring pressures and use our Patented “Hydra Rev Kit” to reduce chances of valve float associated with rpm 6200 or higher.
190cc Vortec Street Head Flow Chart
Tested on 4.060 Bore
190cc Eliminator Vortec Street Cylinder Head Features:
- 100% CNC Ported Combustion Chambers
- 100% CNC Ported Exhaust Ports
- 100% CNC Ported Intake Ports
- Competition 5-angle Valve Job
- 190cc Intake Ports
- 64cc Exhaust Ports
- Bead Lock Intake Valve, 2.020” x 4.903” Overall Valve Length
- Bead Lock Exhaust Valve, 1.600” x 4.955” Overall Valve Length
- PAC Racing Valve Spring: 1.290” OD Hydraulic Roller Dual Valve Spring, 135 lbs on seat, .600” maximum lift
- 7° Manley 4140 Chrome Moly Retainers
- 7° Bead Lock Valve Keepers
- 3/8” Rocker Studs
- Adjustable 5/16” Guide Plates
- Viton Valve Seals
- Hardened Spring Cup
- Intake Valve Seats
- Exhaust Valve Seats
- Bronze Valve Guides
- Standard Exhaust Bolt Pattern, Accepts Factory and Aftermarket Headers
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0912 | 180cc Eliminator Street Aluminum Cylinder Heads
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