Afr 220cc Competition Eliminator Sbc Bare Cylinder Heads, 75cc Chambers, No Parts

AFR`s 220cc "Race Ready" and "Competition" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings. This is AFR`s largest, best flowing head for use with conventional rocker arms. Recommended for race applications or radical "Pro Street" style builds. Machining options are available to customize AFR Heads to your specific build. Note: Head comes completely bare, no parts. *Notice Pictures are for reference heads would come bare, no parts.
The Ultimate Standard Valve Location Racing Head! - Information below is referring to fully assembled heads.
AFR is reviving its popular 220cc version due to overwhelming requests from customers for a larger bolt on standard valve location head. Unlike the previous 220 cc, the new Eliminator version requires no special parts. Valves and studs are in stock GM L98 locations just like the very popular, 180, 195, and 210 series heads. They do not require offset rockers of any kind yet are still able to muster flow numbers that are in raised runner head territory. A 329 CFM head that is perfect for someone wanting to retain all their standard components while still having the airflow to reach that elusive 700 HP mark in aggressive drag race trim. Displacement ranging from a high RPM 350 to a 427 CID with natural applications in the various sportsman classes, bracket/drag cars, oval track, and larger displacement street machines with typical operating ranges between 4000 to 8000 RPM depending on application. As always they come with AFR's trademark 3/4" thick head deck (ideal for nitrous or blower applications). Standard valves are lightweight 8mm 2.100 intake and 1.600 exhaust with AFR's hardened ductile iron interlocking seats. Drilling for centerbolt valve covers available as an option. This head is not for every large displacement combination so if you are unsure whether this is the right AFR head for you, we always encourage you to contact us directly before purchasing.
The exhaust ports are raised .250" over a standard GM L-98 cylinder head.

Note:
2.100 valves will require aftermarket pistons notched for valve clearance. 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 220cc Intake Port Dimension 2.240" H x 1.310" W 3/8 Radius Intake Port Location Stock Exhaust Port Volume 80cc Exhaust Port Dimension 1.420" H x 1.545" W Exhaust Port Location .250" Raised Combustion Chamber Size 65cc or 75cc Valve Cover Bolt Pattern  Perimeter Bolt Valve Angle 23? Valve Spring Pocket Diameter 1.580" 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 2.180 sq. in. Note:Angle mills might require a .120" Thick intake gasket. Spark Plug Dimensions 14mm x .750" w/Gasket Seat Intake Gasket, Fel-Pro #1206 AFR #6820 Exhaust Port Gasket, Fel-Pro #1405 AFR #6835 Head Gasket, 350cid Fel-Pro #1003 Street Pkg #6800 Head Gasket, 400cid Fel-Pro #1014 AFR #6802 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 AFR Titan TXR #4801
Suggested Manifold AFR Titan TXS #4802
Spark Plug Starting Range Autolite 3922 Carb EO# Not Emissions Complient 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.