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AFR 220cc Competition Eliminator SBC Bare Cylinder Heads, Spread Port, 75cc Chambers, No Parts

AFR 1115NP
Spread port heads have the center exhaust ports spread apart approximately 1/2" over stock GM heads. The reason for spread port heads is to achieve additional cooling in the center of the head where the heat concentration is greatest. As standard headers do not fit, spread port headers are required since the center ports are spread further apart than stock GM products. The increased spacing on the exhaust port also requires the use of exhaust gasket Fel-Pro #1409. Spread port heads only come with a Stahl bolt pattern. AFR's spread port head has all the benefits and features of AFR's standard head. As all benefits and features are the same, please review respective page for product details (i.e. for 210cc spread port view 210cc SBC "Eliminator").

Note: Head comes completely bare, no parts.

*Notice Pictures are for reference heads would come bare, no parts.
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Description

AFR's Coolest Racing Head! - Information below is referring to fully assembled heads.
AFR's Spread Port 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 #1409 Fel-Pro #1409
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.

Details

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

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