$$2,182.00Engine \ Cylinder Heads \ Ford Big Block 385 Series Aluminum Heads3805
AFR3805
AFR 3805 Big Block Ford Cylinder Heads 270cc, 85cc Chambers, Assembed, Hydraulic Roller, Each
AFR's 280cc 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. Please note, due to AFR's valve angle and ...
Air Flow Research3805 Big Block Ford Cylinder Heads 270cc, 85cc Cha

Air Flow Research

AFR 3805 Big Block Ford Cylinder Heads 270cc, 85cc Chambers, Assembed, Hydraulic Roller, Each

Item #: AFR3805

Mfg Part #: 3805

Applies To Continental U.S. orders only

Specifications
Cylinder Head Specifications
Cylinder Head Style
Assembled
Cylinder Head Material
Aluminum
Intake Port Shape
Oval
Intake Valve Diameter (in)
2.250 in.
Cylinder Head Finish
Natural
Combustion Chamber Volume (cc)
85cc
CNC-Machined Combustion Chamber
Yes
Intake Runner Volume (cc)
270cc
Exhaust Runner Volume (cc)
132cc
CNC-Machined Intake Runner
Yes
CNC-Machined Exhaust Runner
Yes
Intake Port Location
Standard
Exhaust Port Shape
Rectangular
Exhaust Port Location
Standard
Spark Plug Style
14mm Spark Plug, .750 Reach, 5/8 Hex
Intake Valves Included
Yes
Exhaust Valves Included
Yes
Exhaust Valve Diameter (in)
1.760 in.
Valve Springs Included
Yes
Maximum Valve Lift (in)
0.725 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
Valve stem diameter (in)
N/A
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.
Deck Thickness (in)
0.625 in.
Guideplates Material
Hardended steel
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
Spark plug fitment
14mm x 3/4" reach, gasket seat
Quantity
Sold as a pair.
Notes
Includes hydraulic roller springs
Applications
Make
Ford
Engine Family
Ford big block 385 Series
Engine Size
7.0L/429-7.5L/460
Years
1968-1987
General
Brand
Air Flow Research
Item #
AFR3805
Mfg Part #
3805
Description

AFR's 280cc 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. Please note, due to AFR's valve angle and location, custom pistons or notching existing pistons will be required

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