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225cc SBF Aluminum Cylinder Head Part Numbers
CNC Ported Pairs of Heads Complete With Parts or
Ready to Install
Race
Ready CNC Ported Aluminum Cylinder Heads |
Description |
Part Number |
| 225cc Race Head, Stud, 58cc |
1451 |
| 225cc Race Head, Stud, 72cc |
1456 |
Stage
1 Bare Heads, No Porting or Parts |
Description |
Part Number |
| 210cc Race Head, Stud, 53cc |
146 |
Basic Package Components |
Part # |
100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
Competition 3-angle Valve Job |
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| Intake Valve, 2.080" x 100L |
AFR #7261 |
| Exhaust Valve, 1.600" x 100L |
AFR #7254 |
| 1.550" OD Roller Dual Valve Spring w/ dampener, 225 lbs on seat, .710" maximum lift |
AFR #8000 |
| 10° 4140 Chrome Monly Steel Retainers |
AFR #8511 |
| 10° Valve Locks |
AFR #9009 |
| 7/16" Rocker Studs |
AFR #6405 |
| 5/16" Guide Plates |
AFR #6107 |
| Valve Seals |
AFR #6612 |
| Hardened Shims |
AFR #8045 |
| Intake Valve Seats |
AFR #9058 |
| Exhaust Valve Seats |
AFR #9069 |
| Bronze Valve Guides |
AFR #9051 |
Special orders available upon request.
Specifications, Features, and Optional Supporting Components |
| Head Torque |
100 ft. lbs with 1/2" stud |
| Rocker Stud Torque |
55-60 ft. lbs |
| Intake Port Gasket, 1.400" x 2.250" w/ 3/8" radius |
AFR #6812 or Fel-Pro #1262R |
| Exhaust Port Gasket |
Fel-Pro #1487, AFR #6839 |
| Head Gasket |
Fel-Pro #1011-1, AFR #6808 |
| Head Bolts and Studs |
Standard ARP, AFR #6318 & #6317 |
| Head Bolt Washers |
Manley, AFR #6320 |
| Stud Girdle |
AFR #6207 |
| Suggested Manifold |
Victor Jr, Super Victor |
| Spark Plug Starting Range |
Autolite 3922 |
| Combustion Chambers |
58cc or 72cc |
| Spring Pocket can be cut to 1.580, no deeper |
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| Valve Spacing |
Standard |
| Rocker Arms |
Standard, will not accept rail rocker arms |
| Valve Angle |
Standard |
| Angle Mill (6cc Maximum Optional Mill) |
.008" per cc |
| Flat Mill (3cc Maximum Optional Mill) |
.006" per cc |
Important: Do not port match you intake manifold to Fel-Pro gasket as it does not precisely fit AFR heads.
Note: Milling head deck will affect flow numbers.
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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.