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AFR 280cc Bullitt Big Block Ford Bare Cylinder Heads 75cc, No Parts
AFR 3801
Our 280cc feature partially CNC ported intake, exhaust & chambers, A356 aluminum castings with standard exhaust port locations. Recommended for street, towing, or street/strip engines with displacements up to 477 cubic inches, operating up to 6200 RPM. Please note, due to AFR's valve angle and location, custom pistons or notching existing pistons will be required.
Note: Head comes completely bare, no parts.
*Notice Pictures are for reference heads would come bare, no parts.
Note: Head comes completely bare, no parts.
*Notice Pictures are for reference heads would come bare, no parts.
Shipping: FREE continental USA ground shipping on ALL AFR Cylinder Heads
Was:
$2,433.66
Sale:
$2,233.66
Save:
8%
Save:
$200.00
Description
The Most Cost Effective Street/Strip Head Available - Information below is referring to fully assembled heads.
AFR's 280cc aluminum cylinder heads have 2.250" intake valves and 1.760" exhaust valves that move tremendous volumes of air through conservative runner volumes, spelling big torque and horsepower numbers. With combustion chamber volumes of 75cc accompanied by 132cc exhaust ports, AFR's new 280cc is the ultimate choice for up to 477 cubic inch engines operating up to 6200 RPM. AFR's trademark 3/4" thick cylinder head deck makes them ideal for heavy nitrous or blower applications.
Notes:
Due to AFR's revised valve location and angle, application specific AFR pistons or fly cutting your current pistons will be required.
| Basic Package Components | Part # |
| 50% CNC Ported Combustion Chambers 80% CNC Bowl Blend Intake & Exhaust, Intake Gasket Match Competition 5-Angle Valve Job |
| Specifications, Features, and Optional Supporting Components |
| Intake Port Gasket | AFR #6893 |
| Exhaust Port Gasket, Fel-Pro #1420 | AFR #6891 |
| Head Gasket, 4.500 Bore, Fel-Pro #1018 | AFR #6892 |
| Head Bolts, ARP #155-3603 | AFR #6340 |
| Head Studs, ARP# 155-4202 12 Point | AFR #6341 |
| Head Bolt Washers, Manley | AFR #6320 |
| Stud Girdle | AFR #6209 |
| Suggested Manifold | AFR Single Plane, AFR# 4992 or 4993 |
| Spark Plug Starting Range | Autolite 3932 |
| Combustion Chambers | 75cc |
| Spring Pocket | 1.750" O.D |
| Valve Angle | 14° Intake/8° Exhaust |
| Minimum Bore Diameter | 4.360" |
| Minimum Cross Sectional Area | 3.225 sq. in. |
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.
Details
- AFR 3801
- AFR 3801
- Air Flow Research
- New
Categories
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
- TRE Performance Difference
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