AFR 190cc Eliminator Vortec SBC Bare Cylinder Heads, 65cc Chambers, No Parts
Note: Head comes completely bare, no parts.
*Notice Pictures are for reference heads would come bare, no parts.
Description
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.
Details
- AFR 0912NP
- AFR 0912NP
- Air Flow Research
- New
Shipping Information
- Item Requires Shipping
- 65.0 lbs.
- W12.0000” x H12.0000” x L24.0000”
- Free Basic Shipping
- This item ships in its own box.
- FREE continental USA ground shipping on ALL AFR Cylinder Heads
- TRE Performance Difference
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