AFR Cylinder Head Bullitt Aluminum 315cc Intake 85cc Chambers With Hydraulic Roller Springs Stud Mount Pair 429/460
Pair of Air Flow Research Stud Mount 315cc Aluminum Bullitt Cylinder Heads with 85cc Combustion Chambers and Hydraulic Roller Springs for 429 and 460 Engines.
If you’re looking for the biggest and the best parts for the under hood improvements to your Ford car, truck or SUV, this Pair of Air Flow Research 3837 Stud Mount 315cc Aluminum Bullitt Cylinder Heads with 85cc Combustion Chambers and Hydraulic Roller Springs is right in line with your expectations. Manufactured using only the highest quality components and A356 aluminum construction, this aftermarket cylinder head offers vastly improved air flow. Designed for use with high-revving, big block Ford engines or radical pro street style builds, this cylinder head features CNC ported Intake Ports, Exhaust Ports and Combustion Chambers.
Cylinder Head Components:
- 100% CNC Ported Combustion Chambers
- 100% CNC Ported Intake and Exhaust
- Competition 5-Angle Valve Job
- 11/32" Bead Lock Intake Valve (2.300" x 5.250" O.A.L)
- 11/32" Bead Lock Tulip Exhaust Valve (1.760" x 5.050" O.A.L)
- PAC Racing 1.550" OD Hydraulic Roller Dual Valve Spring 175lbs on seat (.725" maximum lift Max RPM 6500-6700)
- 10 Degree Manley Steel Retainers (1.500" O.D x 1.120" I.D x .705" I.D)
- 10 Degree 11/32" Beadlock Valve Keepers with lashcap recess
- ARP 7/16" Rocker Studs
- Adjustable 3/8" Guide Plates
- 11/32" Viton Valve Seals
- Hardened Valve Spring I.D Locator (1.550" O.D x .780" I.D)
- Intake Valve Seats (2.450" O.D x 1.950" I.D x .375" Deep)
- Exhaust Valve Seat (1.900" O.D. x 1.400" I.D. x .375" Deep)
- 11/32" Exhaust Bronze Valve Guides (.502" O.D x 2.25" O.A.L)
Cylinder Head Specifications:
- Material: A356 Aluminum
- Intake Port Volume: 315cc
- Intake Port Dimension: 2.275" H x 1.850" W x .575 Radius
- Intake Port Location: Stock
- Exhaust Port Volume: 142cc
- Exhaust Port Dimension: 1.850"H x 1.600"W
- Exhaust Port Location: .250" Raised
- Combustion Chamber Size: 85cc
- Valve Cover Bolt Pattern: Perimeter Bolt
- Valve Angle: 14 Degree Intake/8 Degree Exhaust
- Valve Cant: 4.04 Degree Intake/4.12 Degree 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: 3.440sq in
- Spark Plug Dimensions: 14mm x .750" with Gasket Seat
Please Note: Due to the valve angle and location, custom pistons or notching existing pistons will be required.
Tech Tip: AFR recommends the use of .120” thick-wall pushrods.
Air Flow Research (AFR) has more than 30 years of cylinder head development experience and is going to have the perfect cylinder heads for your performance Mustang. Check out their products that are available from CJ Pony Parts and give your pony a huge performance upgrade with help from AFR!
Order this Pair of Air Flow Research 3837 Stud Mount 315cc Aluminum Bullitt Cylinder Heads with 85cc Combustion Chambers and Hydraulic Roller Springs for your 429 and 460 Engine today from CJ Pony Parts.
California Residents: Proposition 65 Warning
Related Categories: Mustang Parts, Mustang Engine, Mustang Cylinder Heads, Restomod Parts, Restomod Engine
Only for use on pre-pollution controlled vehicles: This product can be used on vehicles that were manufactured before emissions control regulations were imposed. Pre-pollution vehicles are defined as:
- 1965 and older U.S. manufactured California certified vehicles
- 1967 and older U.S. manufactured federally certified vehicles
Installation Difficulty
Intermediate skill is required for this installation.
