Air Flow Research
AFR BBF 295cc Bullitt CNC Cylinder Heads 75cc Assembled 3817
AFR BBF 295cc Bullitt CNC Cylinder Heads 75cc Assembled 3817
SKU:AFR3817
Inventory: 1 in stock
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AFR Bullitt 14° Aluminum Cylinder Heads
The AFR Bullitt line of cylinder heads for the Big Block Ford features a different port shape with a more consistent cross-section area and new valve positioning compared to the factory pieces. This new clean-sheet design improves engine response and increases horsepower and torque. Made of A356 aluminum castings, they feature 100% CNC-ported intake and exhaust chambers and high-quality components throughout. Recommended for more aggressive street/strip or race builds with displacements up to 512 CID operating up to 6500 RPM. Sold in pairs.
Note: Due to AFR's valve angle and location, custom pistons or notching existing pistons will be required.
Cylinder Head - Bullitt - Assembled - 2.250 / 1.760 in Valves - 295 cc Intake - 75 cc Chamber - 1.625 in Springs - Aluminum - Big Block Ford - Sold as a Pair - Brand: Air Flow Research - Part Number: 3817
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Brand
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AFR (Air Flow Research)
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Part Number
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3817
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Product Line
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Bullitt
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Assembled/Bare
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Assembled
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Chamber Volume
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75 cc
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Plug Angle
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Angle
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Intake Runner Volume
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295 cc
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Exhaust Runner Volume
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142 cc
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Intake Port Shape
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Rectangle
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Intake Port Location
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Stock
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Intake Port Height
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2.275 in
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Intake Port Width
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1.850 in
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Exhaust Port Shape
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Square
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Exhaust Port Location
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Stock
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Exhaust Port Height
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1.850 in
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Exhaust Port Width
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1.600 in
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Intake Valve Size
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2.250 in
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Intake Valve Included
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Yes
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Intake Valve Material
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Stainless
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Intake Valve Length
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5.245 in
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Exhaust Valve Size
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1.760 in
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Exhaust Valve Included
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Yes
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Exhaust Valve Material
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Stainless
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Exhaust Valve Length
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5.050 in
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Valve Spring Included
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Yes
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Intended Camshaft Style
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Solid Roller
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Maximum Lift
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0.850 in
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Maximum RPM
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7600
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Valve Spring Diameter
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1.625 in
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Valve Spring Number
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Dual
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Valve Spring Damper
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No
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Valve Spring Retainers Included
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Yes
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Valve Spring Retainer Material
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Chromoly
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Valve Locks Included
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Yes
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Valve Lock Material
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Chromoly
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Valve Lock Angle
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10 Degree
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Valve Seal Included
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Yes
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Valve Seal Style
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Positive Stop
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Valve Seal Material
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Viton
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Rocker Studs Included
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Yes
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Rocker Stud Size
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7/16-20 in
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Pushrod Guide Plate Included
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Yes
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Guide Plate Pushrod Size
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3/8 in
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Valve Guide Included
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Yes
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Valve Guide Material
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Bronze
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Perimeter Mount Valve Cover
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Yes
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Valve Seat Included
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Yes
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Intake Valve Seat Material
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Ductile Iron
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Exhaust Valve Seat Material
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Ductile Iron
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Valve Seat Finish
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Machined
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Combustion Chamber Finish
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CNC Machined
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Intake Runner Finish
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CNC Machined
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Exhaust Runner Finish
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CNC Machined
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Intake Valve Angle
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14 Degree
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Exhaust Valve Angle
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8 Degree
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Material
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Aluminum
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Color
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Natural
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Finish
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Natural
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Quantity
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Pair
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