AFR 225cc Outlaw SBF Race Cylinder Head
The Best 20° In-Line Head You Can Buy
Are you looking for big torque and horsepower number? Only AFR’s
225cc aluminum cylinder heads will provide you with exactly that. 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 2.080
intake valves and 1.600 exhaust valves these heads move massive
amounts of air. Combustion chamber volumes of 58cc or 72cc accompanied by
80cc exhaust ports which are raised .375 higher than stock. AFR’s
new 225cc is the perfect choice for 347 through 427 CI windsors
engines operating between 4500 to 8500 rpm. Our trademark 3/4”
thick cylinder head deck makes them ideal for heavy nitrous or blower applications.
Note: 2.080 valves will require aftermarket pistons notched for valve clearance. (see footnotes here)
AFR 225cc SBF Aluminum Cylinder Head Flow Chart
Tested on 4.125 Bore
Basic Package Components
100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
3-angle Radiused Valve Job
AFR #7261
Bead Lock Intake Valve, 2.080" x 100L
AFR #7254
Bead Lock Exhaust Valve, 1.600" x 100L
AFR #8000
1.550" OD Roller Dual Valve Spring w/ dampener,
225 lbs on seat, .710" maximum lift
Specifications, Features, and Optional Supporting Components
100 ft. lbs with 1/2" stud
Head Torque
55-60 ft. lbs
Rocker Stud Torque
AFR #6812
Intake Port Gasket, 1.400" x 2.250" w/ 3/8" radius, Fel-Pro #1262R
Important: Do not port match your intake manifold to Fel-Pro gasket as it does not precisely fit AFR heads.
AFR #6318
SB Ford 1/2" Bolt Head Bolt Kit, ARP #154-3603
AFR #6317
SB Ford 1/2" Bolt Head Stud Kit, ARP #254-4503
Super Victor
Suggested Manifold
Victor Jr.
Suggested Manifold
Autolite 3922
Spark Plug Starting Range
58cc or 72cc
Combustion Chambers
Can be cut to 1.750, no deeper
Spring Pocket
Standard
Valve Spacing
Standard, will not accept rail rocker arms
Rocker Arms
Standard
Valve Angle
.008" per cc
Angle Mill (6cc Maximum Optional Mill)
.006" per cc
Flat Mill (3cc Maximum Optional Mill)
Note: Milling head deck will affect flow numbers. |
