Air Flow Research AFR3803 Ford BB V8 280cc Bullit 14¡ Street Heads Solid Roller Springs
AFR - Air Flow Research
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Air Flow Research AFR3803 Ford BB V8 280cc Bullit 14¡ Street Heads Solid Roller Springs
Item Description
AFR 280cc BBF Bullitt 14 degree cylinder heads are your shot to outgun the competition!
They feature partially CNC-ported intakes, exhausts, and chambers, A356 aluminum castings, and high-quality components throughout with standard exhaust port locations. This clean-sheet redesign of their Bullitt cylinder heads deliver a decreased overall runner size, a more consistent cross-sectional area, carefully shaped combustion chambers, and repositioned valves to complement the intake and exhaust port design. Together they improve engine response, providing increases in horsepower and torque. The 280cc Bullitt heads are recommended for street, towing, or street/strip engines with displacements up to 477 cu. in., operating up to 6,200 rpm. Load your engine for performance with AFR Bullitts!
- Combustion Chamber Volume (cc):75
- Intake Runner Volume (cc):270cc
- Exhaust Runner Volume (cc):132cc
- Cylinder Head Style:Assembled
- Cylinder Head Material:Aluminum
- Intake Valve Diameter (in):2.250 in.
- Cylinder Head Finish:Natural
- CNC-Machined Combustion Chamber:Yes
- CNC-Machined Intake Runner:Yes
- CNC-Machined Exhaust Runner:Yes
- Intake Port Location:Standard
- Exhaust Port Shape:Rectangular
- Exhaust Port Location:Standard
- Intake Valves Included:Yes
- Exhaust Valves Included:Yes
- Exhaust Valve Diameter (in):1.760 in.
- Valve Springs Included:Yes
- Maximum Valve Lift (in):0.680 in.
- Outside Diameter of Outer Spring (in):1.550 in.
- Damper Spring Included:Yes
- Number of Springs Per Valve:Dual
- Retainers Included:Yes
- Retainer Material:Steel
- Locks Included:Yes
- Lock Style:10 degree
- Valve Stem Seals Included:Yes
- Valve Stem Seal Style:Positive stop
- Rocker Arm Studs Included:Yes
- Rocker Arm Nut Thread Size:7/16-20 in.
- Rocker Arms Included:No
- Rocker Arm Nuts Included:No
- Guideplates Included:Yes
- Guideplate Pushrod Size:3/8 in.
- Valve Cover Mounting Style:Perimeter bolt
- Accessory Bolt Holes Drilled:Yes
- Intake Valve Angle:14
- Exhaust Valve Angle:8
- Valve Guides Included:Yes
- Valve Guide Material:Bronze
- Valve Seats Machined:Yes
- Valve Seat Machine Style:5-angle
- Valve Seat Material:Ductile iron
- Steam Holes Drilled:No
- Oiling Style:Through pushrod
- Machined for O-Ring:No
- Heat Crossover:No
- Quantity:Sold as a pair.
- Notes:Includes solid roller springs. Due to valve angle and location, custom pistons or notching of existing pistons are required.
Manufacturer Information
- Manufacturer: AFR - Air Flow Research
- Manufacturer Part Number:
- UPC:
- Colour:
- Additional Information:
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