AFR Big Block Ford 315 "Bullitt" Series Cylinder Heads (#3838)
These 315cc heads are AFR's largest and best flowing big block Ford heads! They feature 100% CNC ported intake, exhaust and combustion chambers. Manufactured using A356 aluminum castings and high quality components throughout. These heads feature a .250" raised exhaust port location.
Best suited for large displacement high RPM big block Ford racing engines or radical “Pro Street” style builds. Please note, due to AFR's valve angle and location, custom pistons or notching existing pistons will be required. AFR heads are available bare (without parts), call our tech line for details..
CYLINDER HEAD DETAILS:
100% CNC Ported Combustion Chambers
100% CNC Ported Intake Runners
100% CNC Ported Exhaust Ports
Competition 5-Angle Valve Job
11/32" Bead Lock Intake Valve 2.300" x 5.250"
11/32" Bead Lock Tulip Exhaust Valve 1.760" x 5.050"
PAC Racing #1224 Solid Roller Valve Spring .850" max.
10° Manley Steel Retainers
10° 11/32" Bead lock Keepers w/lash cap recess
ARP 7/16" Rocker Studs
Adjustable 3/8" Guide Plates
Viton Valve Seals
Bronze Valve Guides
BASIC DIMENSIONS & DATA:
Material: A356 Aluminum
Intake Port Volume: 315cc
Intake Port Dimension: 2.275" x 1.850" x .575"R
Intake Port Location: Stock
Exhaust Port Volume: 142cc
Exhaust Port Dimension: 1.850" x 1.600"
Exhaust Port Location: .250" Raised
Combustion Chamber Size: 85cc
Valve Angle: 14° Intake/8° Exhaust
Valve Cant: 4.04° Intake/4.12° Exhaust
Valve Spring Pocket Diameter: 1.750" O.D
Max Valve Spring Pocket Machining: 1.750" O.D
Deck Thickness: .750"
Minimum Bore Diameter: 4.360"
Minimum Cross Sectional Area: 3.440 sq. in.
NOTE: Due to AFR's revised valve location and angle, application specific AFR pistons or fly cutting your current pistons will be required.
PART NUMBER: AFR-3838
Due to the ever increasing costs and limited availability of certain materials, skyrocketing shipping costs, credit card usury fees as well as the inept policies of the current administration, we can no longer provide set pricing on any products on this web site. Email directly at info@FlowTechInduction.com for the latest pricing and availability.
