Afr 220cc Competition Renegade Sbf Cylinder Heads, 72cc Chambers

AFR`s 220cc "Competition" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. This is AFR`s largest, best flowing head for the small block Ford. Recommended for race applications or radical "Pro Street" style builds. Component upgrade and machining options are available to customize AFR Heads to your specific build.
The Best 20° In-Line Head You Can Buy!
AFR's BRAND NEW 220cc Renegade Ford head is a fresh addition to the lineup that adds quite a punch to our already formidable and proven 20° Ford Heads. These new 220cc heads flow a massive 340 CFM, averaging an 11 CFM increase from .200-.800 lift over our previous best in spite of its 5cc smaller intake runner. This is the best small block Ford 20° inline head you'll find to provide huge horsepower to out run your competition. With the largest intake and exhaust runner volumes for our in-line Ford line up, these are the ultimate for NMRA Renegade or Hot Street classes. With lightweight 8mm 2.100 intake valves and 1.570 exhaust valves these heads move massive amounts of air. Combustion chamber volumes are available in 58cc or 72cc. 80cc exhaust ports and bolt pattern are raised .375 (3/8") higher than stock, this rarely affects header or chassis fitment. AFR's new 220cc is the perfect choice for 347 through 427 CI windsor engines operating from 4500 rpm upwards. AFR's trademark 3/4" thick cylinder head deck makes them ideal for heavy nitrous or blower applications.

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
8mm Bead Lock Intake Valve 2.100" x 5.000" O.A.L. AFR #7256 8mm Bead Lock Exhaust Valve 1.570" x 5.030" O.A.L. AFR #7248 PAC Racing Spring 1.550" OD Solid Roller Dual Valve Spring, 220 lbs on seat, .710" maximum lift, Max RPM 7200-7400 (upgrades available) AFR #8000 10° Manley Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D AFR #8511 10° Bead Lock Valve Keepers with lashcap recess AFR #9009 ARP 7/16" Rocker Studs AFR #6405 Adjustable 5/16" Guide Plates AFR #6103 Viton Valve Seals AFR #6612 Hardened Valve Spring I.D Locator 1.550" O.D x .780" I.D AFR #8048 Ductile Iron Intake Valve Seats 2.131" O.D x 1.680" I.D x .375" Deep AFR #9059 Ductile Iron Exhaust Valve Seats 1.650" O.D x 1.350" I.D x .375" Deep AFR #9069 Bronze Valve Guides AFR #9051
Specifications, Features, and Optional Supporting Components Head Material A356 Aluminum Intake Port Volume 220cc Intake Port Dimension 2.265" H x 1.325" W 3/8 Radius Intake Port Dimension Intake Port Location Stock Exhaust Port Volume 70cc Exhaust Port Dimension 1.445" H x 1.595" W Exhaust Port Location Raised .375" Combustion Chamber Size 58cc or 72cc Valve Cover Bolt Pattern Perimeter Bolt Valve Angle 20° Valve Spring Pocket Diameter 1.580" O.D Max Valve Spring Pocket Machining 1.580" O.D Deck Thickness .750" Minimum Bore Diameter 4.000" Flat Mill .006" per cc 54cc Max (from 58cc); 69cc Max (from 72cc); Angle Mill .009" per cc 48cc Max (from 58cc); 66cc Max (from 72cc) Minimum Cross Sectional Area 2.345 sq. in. Note: Do not port match your intake manifold to Fel-Pro gasket as it does not precisely fit AFR. Spark Plug Dimensions 14mm x .750" w/Gasket Seat Carb EO# N/A
Head Bolt Diameter 1/2" Intake Port Gasket, Fel-Pro #1262       AFR #6812
Exhaust Port Gasket, Fel-Pro #1487    AFR #6839 Head Gasket, 302/351 Windsor, Fel-Pro #1011-1    AFR #6808 SB Ford 1/2" Bolt Head Bolts, ARP #154-3603    AFR #6318 SB Ford 1/2" Bolt Head Studs, ARP #254-4503   AFR #6317 1/2" Bolt - 7/16" Thread Head Bolts, 289/302W: ARP 254-3708   AFR #6319 Head Bolt Washers, Manley   AFR #6320 Stud Girdle AFR #6207 Suggested Manifold RPM Performer or Vic Jr.    Spark Plug Starting Range Autolite 3922 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.