AFR 190cc Eliminator Vortec SBC Cylinder Heads, 65cc Chambers

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.

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
8mm Bead Lock Intake Valve 2.020" x 4.900" O.A.L.	AFR #7251
Bead Lock Exhaust Valve, 1.600"	AFR #7250
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 #8017
7° Chrome Moly Retainers	AFR #8514
7° Bead Lock Valve Keepers	AFR #9007
ARP 3/8" Rocker Studs	AFR #6409
Adjustable 5/16" Guide Plates	AFR #6103
Viton Valve Seals	AFR #6612
Hardened Spring Cup	AFR #8042
Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep	AFR #9060
Ductile Iron Exhaust Valve Seats 1.696" O.D x 1.325" I.D x .305" Deep	AFR #9070
Bronze Valve Guides	AFR #9051

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.