AFR 205cc Competition Renegade SBF Cylinder Heads, 58cc Chambers
AFR`s 205cc "Competition" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for race applications and very aggressive street/strip builds. Component upgrade and machining options are available to customize AFR Heds to your specific build.
Shipping: FREE continental USA ground shipping on ALL AFR Cylinder Heads
If you’re looking for the world's finest street/strip head available, AFR's 205cc aluminum cylinder head is your answer. With lightweight 8mm 2.080" intake valves and 1.600" exhaust valves this head moves tremendous volumes of air through conservative runner volumes, spelling big torque and horsepower numbers. With combustion chamber volumes of 58cc or 72cc accompanied by 70cc exhaust ports which are raised .125 higher than stock, AFR's new 205cc is the ultimate choice for 331 through 392 engines operating from 3500 RPM to 8000 RPM. AFR's trademark 3/4" thick head deck makes them ideal for heavy nitrous or blower applications. With available optional nitrous or blower exhaust ports featuring 73cc ultra high flowing exhaust ports.
2.080 valves will require aftermarket pistons notched for valve clearance.
All 205cc head exhaust ports are raised .125 over stock.
|Basic Package Components||Part #|
Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
Competition 5-angle Valve Job
|8mm Bead Lock Intake Valve, 2.080" x 5.000" Overall Valve Length||AFR #7255|
|8mm Bead Lock Exhaust Valve, 1.600" x 5.030" Overall Valve Length||AFR #7254|
|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|
|Intake Port Volume||205cc|
|Intake Port Dimension||2.130" H x 1.300" W 3/8 Radius|
Intake Port Location
|Exhaust Port Volume||70cc|
|Exhaust Port Dimension||1.400" H x 1.400" W|
|Exhaust Port Location||Raised .125"|
|Combustion Chamber Size||58cc or 72cc|
Valve Cover Bolt Pattern
|Valve Spring Pocket Diameter||1.580" O.D|
|Max Valve Spring Pocket Machining||
|Minimum Bore Diameter||4.000"|
|Flat Mill||.006" per cc 54cc Max (from 58cc); 68cc Max (from 72cc);|
|Angle Mill||.009" per cc 48cc Max (from 58cc); 62cc Max (from 72cc)|
Minimum Cross Sectional Area
|2.165 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|
Head Bolt Diameter
|Intake Port Gasket, Fel-Pro #1262||AFR #6832
|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|
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.
- 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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