AFR 280cc Bullitt Big Block Ford Cylinder Heads 75cc, Hydraulic Roller Springs
AFR 3802
AFR`s 280cc "As Cast" heads are the cost effective performance choice over re-worked factory heads. They feature partially CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout 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. Component upgrades and machining options are available to customize AFR Heads to your specific build.
Due to AFR's revised valve location and angle, application specific AFR pistons or fly cutting your current pistons will be required.
Due to AFR's revised valve location and angle, application specific AFR pistons or fly cutting your current pistons will be required.
Shipping: FREE continental USA ground shipping on ALL AFR Cylinder Heads
Was:
$2,850.86
Sale:
$2,550.86
Save:
11%
Save:
$300.00
Description
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 |
|
11/32" Bead Lock Intake Valve
2.250" x 5.250" O.A.L |
AFR #7551 |
11/32" Bead Lock Tulip Exhaust Valve 1.760" x 5.050" O.A.L | AFR #7553 |
PAC Racing #1940 1.550" OD Hydraulic Roller Dual Valve Spring 175 lbs. on seat, .725" maximum lift Max RPM 6500-6700 | AFR #8002 |
10° Manley Steel Retainers 1.500" O.D x 1.120" I.D x .705" I.D | AFR #8511 |
10° 11/32" Beadlock Valve Keepers with lashcap recess | AFR #9010 |
7/16" Rocker Studs Intake | AFR #6407 |
Adjustable 3/8" Guide Plates | AFR #6108 |
11/32" Viton Valve Seals | AFR #6610 |
Hardened
Valve Spring I.D
Locator 1.550" O.D x .780" I.D |
AFR #8048 |
Intake Valve Seats 2.450" O.D x 1.950" I.D x .375" Deep | AFR #9065 |
Hardened Valve Spring I.D Locator 1.550" O.D x .780" I.D | AFR #9066 |
11/32" Bronze Valve Guides .502" O.D x 2.250" O.A.L | AFR #9046 |
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 3802
- AFR 3802
- 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
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